CN115636332B - Municipal administration pipeline hoisting accessory - Google Patents
Municipal administration pipeline hoisting accessory Download PDFInfo
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- CN115636332B CN115636332B CN202211660329.1A CN202211660329A CN115636332B CN 115636332 B CN115636332 B CN 115636332B CN 202211660329 A CN202211660329 A CN 202211660329A CN 115636332 B CN115636332 B CN 115636332B
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Abstract
The invention relates to the technical field of municipal construction, in particular to a municipal pipeline hoisting device which comprises a base, a rope assembly, an auxiliary hoisting block and a fixing assembly, wherein the rope assembly comprises a first rope and a second rope, the auxiliary hoisting block is provided with a first chute and a second chute, a first moving wheel can slide along the first chute, a second moving wheel can slide along the second chute, the auxiliary hoisting block is rotatably provided with a first fixing wheel and a second fixing wheel, one end of the first rope is arranged on the base, bypasses the first fixing wheel and the first moving wheel, and the other end of the first rope is bound at the first end of a pipeline; one end of a second rope is arranged on the base, bypasses the second fixed wheel and the second movable wheel, and the other end of the second rope is bound at the second end of the pipeline; the fixing component is used for fixing the first rope or the second rope. Through setting up rope assembly, supplementary piece and the fixed subassembly of hanging, switching the pipeline to vertical state in-process by the horizontality, avoid pipeline bottom direct contact ground to avoid wearing and tearing.
Description
Technical Field
The invention relates to the technical field of municipal construction, in particular to a municipal pipeline hoisting device.
Background
Municipal administration refers to various administrative management works of a city and also refers to market trade affairs; the city management work comprises industrial and commercial work, traffic, public security, culture and education, environment, sanitation, basic construction and the like. With the continuous development of urbanization in China, high-rise buildings are built in large areas in China, and vertical building pipelines need to be erected on the high-rise buildings to meet daily use functions of the high-rise buildings.
The traditional flip-chip method generally directly adopts the method of wire rope binding to hoist, and this kind of mode is in pipeline lifting earlier stage, and in the pipeline becomes vertical state in-process by the horizontal state promptly, the pipeline bottom is worn and torn easily by ground, takes place to fall lacquer phenomenon even damaged, seriously influences installation effectiveness and result of use.
Disclosure of Invention
Therefore, the municipal pipeline hoisting device is needed to be provided for solving the problems existing in the existing hoisting pipeline.
The above purpose is realized by the following technical scheme:
a municipal pipeline lifting device comprising:
a base;
a cord assembly including a first cord and a second cord;
the auxiliary hoisting block is provided with a first sliding groove and a second sliding groove;
a first moving wheel slidable along the first chute;
a second moving wheel slidable along the second chute;
the auxiliary hoisting block is rotatably provided with a first fixed wheel and a second fixed wheel;
one end of the first rope is arranged on the base, bypasses the first fixed wheel and bypasses the first movable wheel, and the other end of the first rope is bound at the first end of the pipeline;
one end of the second rope is arranged on the base, bypasses the second fixed wheel and bypasses the second moving wheel, and the other end of the second rope is bound at the second end of the pipeline;
a securing assembly to secure the first cord or the second cord.
In one embodiment, the first cord is tied to the conduit at a distance from the first end of the conduit equal to the second cord is tied to the second end of the conduit.
In one embodiment, the fixing assembly includes a first driving member and a fixing block, the fixing block is disposed on the first driving member, the first driving member is used for providing a driving force for moving the fixing block, and the fixing block is used for fixing the first rope or the second rope.
In one embodiment, the fixing block is provided with a protrusion for increasing the friction force with the first rope or the second rope.
In one embodiment, a first slide block is rotatably arranged on the first moving wheel; a second sliding block is rotatably arranged on the second moving wheel; the municipal pipeline hoisting device further comprises a first elastic piece and a second elastic piece, one end of the first elastic piece is arranged on the first sliding block, and the other end of the first elastic piece is arranged on the auxiliary hoisting block; one end of the second elastic piece is arranged on the second sliding block, and the other end of the second elastic piece is arranged on the auxiliary hanging block.
In one embodiment, the municipal pipeline hoisting device further comprises a second driving piece and a third driving piece, wherein the second driving piece is used for providing a driving force for tightening the first rope; the third driving element is used for providing driving force for tightening the second rope.
The invention has the beneficial effects that:
the invention relates to a municipal pipeline hoisting device which comprises a base, a rope assembly, an auxiliary hoisting block and a fixing assembly, wherein the rope assembly comprises a first rope and a second rope, the auxiliary hoisting block is provided with a first chute and a second chute, a first moving wheel can slide along the first chute, a second moving wheel can slide along the second chute, the auxiliary hoisting block is rotatably provided with a first fixing wheel and a second fixing wheel, one end of the first rope is arranged on the base, bypasses the first fixing wheel, bypasses the first moving wheel, and the other end of the first rope is bound at the first end of a pipeline; one end of a second rope is arranged on the base, bypasses the second fixed wheel and bypasses the second movable wheel, and the other end of the second rope is bound at the second end of the pipeline; the fixing component is used for fixing the first rope or the second rope. Through setting up rope assembly, supplementary piece and the fixed subassembly of hanging, switching the pipeline to vertical state in-process by the horizontality, avoid pipeline bottom direct contact ground to avoid wearing and tearing.
Drawings
Fig. 1 is a schematic perspective view of a municipal pipeline hoisting device according to an embodiment of the invention;
FIG. 2 is a schematic front view of a municipal pipeline hoisting device according to an embodiment of the invention;
FIG. 3 is a schematic perspective view of an auxiliary lifting block of the municipal pipeline lifting device according to an embodiment of the invention;
FIG. 4 is a schematic side view of an auxiliary hoist block of the municipal pipeline hoisting device according to an embodiment of the invention;
FIG. 5 isbase:Sub>A cross-sectional view A-A of the auxiliary hoist block of the municipal pipeline hoist apparatus shown in FIG. 4.
Wherein:
100. a base; 110. a first rope; 111. a second rope; 120. a winch; 130. a drive motor; 140. a lift arm;
200. an auxiliary hanging block; 201. a first chute; 202. a second chute; 210. a first fixed wheel; 211. a second fixed wheel; 220. a first moving wheel; 221. a second moving wheel; 230. a first slider; 231. a second slider; 240. a first pressure spring; 241. a second pressure spring; 250. a first hydraulic cylinder; 251. a second hydraulic cylinder; 260. a fixed block;
300. a pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below by way of embodiments with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" as used herein includes both direct and indirect connections (couplings), unless otherwise specified. In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like are used in the orientations and positional relationships indicated in the drawings, which are based on the orientations and positional relationships indicated in the drawings, and are used for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed and operated in specific orientations, and thus, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to 5, a municipal pipeline hoisting device according to an embodiment of the invention is used for switching a pipeline from a horizontal state to a vertical state; the conduit 300 has a first end and a second end; in this embodiment, the municipal pipeline hoisting device comprises a base 100, a rope assembly, an auxiliary hoisting block 200, a first fixed wheel 210, a second fixed wheel 211, a first movable wheel 220, a second movable wheel 221 and a fixed assembly; the base 100 can be arranged on a movable crane or a lifting platform; the number of the driving motors 130 is two, the two groups of driving motors 130 are fixedly connected to the base 100 through bolts, and the two groups of driving motors 130 are symmetrically arranged relative to the base 100; the number of the winches 120 is two, the two winches 120 can be rotatably arranged on the base 100, the two winches 120 are symmetrically arranged relative to the base 100, one end of the first group of winches 120 is fixedly sleeved on a motor shaft of the first group of driving motors 130, and one end of the second group of winches 120 is fixedly sleeved on a motor shaft of the second group of driving motors 130; the lift arm 140 is rotatably provided on the base 100, and the lifting of the lift arm 140 may be directly driven by a hydraulic cylinder or a motor.
A first sliding groove 201 and a second sliding groove 202 are arranged on the upper portion and the lower portion of the auxiliary hanging block 200, and the first sliding groove 201 and the second sliding groove 202 are symmetrically arranged relative to the auxiliary hanging block 200; the first fixed wheel 210 and the second fixed wheel 211 have the same structure, both the first fixed wheel 210 and the second fixed wheel 211 can be rotatably arranged on the auxiliary hanging block 200, the first fixed wheel 210 and the second fixed wheel 211 are symmetrically arranged around the auxiliary hanging block 200, and the first fixed wheel 210 is positioned above the first chute 201; the second fixed wheel 211 is positioned above the second chute 202; the first moving wheel 220 and the second moving wheel 221 have the same structure, the first moving wheel 220 is slidably arranged on the auxiliary lifting block 200 along the first sliding groove 201, and the second moving wheel 221 is slidably arranged on the auxiliary lifting block 200 along the second sliding groove 202; the first moving wheel 220 and the second moving wheel 221 are both rotatable.
The rope assembly comprises a first rope 110 and a second rope 111, one end of the first rope 110 is fixedly connected to the first group of winches 120, the first rope passes through the roller on the lifting arm 140, passes through the first fixed wheel 210, passes through the first moving wheel 220 and is bound to the first end of the pipeline 300; the second rope 111 is fixedly connected to the second set of winches 120 at one end, passes around the rollers of the lifting arm 140, passes around the second fixed pulley 211, passes around the second movable pulley 221, and is tied to the second end of the pipe 300.
The fixing component is used for fixing the first rope 110 or the second rope 111. When the first rope 110 or the second rope 111 is tightened, the first moving wheel 220 is located at the rightmost end of the first sliding chute 201, and the second moving wheel 221 is located at the leftmost end of the second sliding chute 202; when the fixing component fixes the second rope 111, the driving motor 130 corresponding to the first rope 110 is started, and the driving motor 130 drives the corresponding winch 120 to rotate, so that the first rope 110 is completely tightened, i.e. the binding point of the first rope 110 on the pipeline 300 approximately coincides with the first moving wheel 220, and at this time, the pipeline 300 is approximately in a vertical state.
When the fixing component fixes the first rope 110, the driving motor 130 corresponding to the second rope 111 is started, and the driving motor 130 drives the corresponding winch 120 to rotate, so that the second rope 111 is completely tightened, that is, the binding point of the second rope 111 on the pipeline 300 is approximately overlapped with the second moving wheel 221, and at this time, the pipeline 300 is approximately in a vertical state.
Through setting up rope assembly, supplementary piece 200 and the fixed subassembly of hanging, switching pipeline 300 to vertical state in-process by the horizontality, avoid pipeline 300 bottom direct contact ground to avoid wearing and tearing.
In some embodiments, the binding of the first cord 110 on the conduit 300 is a distance from the first end of the conduit 300 that is equal to the binding of the second cord 111 on the conduit 300 is a distance from the second end of the conduit 300; this both balances the forces on the duct 300 and makes the length of the first rope 110 at the first moving wheel 220 to the point of the first rope 110 on the duct 300 equal to the length of the second rope 111 at the second moving wheel 221 to the point of the second rope 111 on the duct 300 after the first rope 110 and the second rope 111 are tightened, the length of the first rope 110 at the first moving wheel 220 to the point of the first rope 110 on the duct 300 equal to the distance between the point of the first rope 110 on the duct 300 and the point of the second rope 111 on the duct 300; thereby enabling the duct 300 to be approximately in the vertical state when the duct 300 is subsequently switched from the horizontal state to the vertical state.
In some embodiments, the fixing assembly includes a first driving member to provide a driving force for moving the fixing block 260 and the fixing block 260; in this embodiment, the first driving member is a first hydraulic cylinder 250 and a second hydraulic cylinder 251; the auxiliary lifting block 200 is provided with two groups of first hydraulic cylinders 250 and two groups of second hydraulic cylinders 251, the first hydraulic cylinders 250 and the second hydraulic cylinders 251 are arranged in a close manner, wherein the first group of first hydraulic cylinders 250 and the first group of second hydraulic cylinders 251 are fixedly connected to one side wall surface of the auxiliary lifting block 200 through bolts, the second group of first hydraulic cylinders 250 and the second group of second hydraulic cylinders 251 are fixedly connected to the other side wall surface of the auxiliary lifting block 200 through bolts, the two groups of first hydraulic cylinders 250 are symmetrically arranged relative to the auxiliary lifting block 200, the two groups of second hydraulic cylinders 251 are symmetrically arranged relative to the auxiliary lifting block 200, fixing blocks 260 are arranged on output shafts of the first hydraulic cylinders 250 and the second hydraulic cylinders 251, first ropes 110 are arranged between the two groups of first hydraulic cylinders 250, and second ropes 111 are arranged between the two groups of second hydraulic cylinders 251.
In some embodiments, the fixing block 260 is provided with a protrusion to increase friction with the first rope 110 or the second rope 111, preventing the rope from being detached when the pipeline 300 is switched to the vertical state or during hoisting.
In some embodiments, the municipal pipeline hoisting device further comprises a first elastic member and a second elastic member, in this embodiment, the first elastic member is a first pressure spring 240, and the second elastic member is a second pressure spring 241; the first slider 230 and the second slider 231 are identical in structure; the number of the first sliding blocks 230 is two, and the two first sliding blocks 230 are rotatably arranged on the first moving wheel 220, and the two first sliding blocks 230 are symmetrically arranged about the auxiliary hanging block 200; the number of the second sliding blocks 231 is two, and the two second sliding blocks 231 are rotatably arranged on the second moving wheel 221, and the two second sliding blocks 231 are symmetrically arranged relative to the auxiliary hanging block 200; the first pressure spring 240 and the second pressure spring 241 have the same structure; the number of the first compression springs 240 is two, one end of each first compression spring 240 is fixedly connected to the auxiliary hanging block 200, the other end of each first compression spring 240 is fixedly connected to the first group of first sliding blocks 230, one end of each second compression spring 240 is fixedly connected to the auxiliary hanging block 200, and the other end of each second compression spring 240 is fixedly connected to the second group of first sliding blocks 230; the number of the second compression springs 241 is two, one end of the first second compression spring 241 is fixedly connected to the auxiliary hanging block 200, the other end of the first second compression spring 241 is fixedly connected to the first group of second sliding blocks 231, one end of the second compression spring 241 is fixedly connected to the auxiliary hanging block 200, and the other end of the second compression spring 241 is fixedly connected to the second group of second sliding blocks 231.
In some embodiments, the municipal pipeline lifting apparatus further comprises a second driving member to provide a driving force for tightening the first rope 110; the third driving element is used for providing a driving force for tightening the second rope 111; in this embodiment, the second driving element and the third driving element are both driving motors 130, the number of the driving motors 130 is two, the two groups of driving motors 130 are both fixedly connected to the base 100 through bolts, and the two groups of driving motors 130 are symmetrically arranged with respect to the base 100; the number of winches 120 is two sets, and two sets of winches 120 all can set up on base 100 rotatoryly, and two sets of winches 120 set up about base 100 symmetry, and the fixed cover of first set of capstan 120 one end is connected on the motor shaft of first set of driving motor 130, and the fixed cover of second set of capstan 120 one end is connected on the motor shaft of second set of driving motor 130.
With reference to the above embodiments, the usage principle and the working process of the embodiments of the present invention are as follows:
before hoisting, a hydraulic cylinder or a motor is started to lift the lifting arm 140 to a specified height; the first rope 110 and the second rope 111 are tied into the shape as shown in fig. 2, sleeved at two ends of the pipeline 300 and tightened; the two sets of driving motors 130 are started, the two sets of capstans 120 are driven by the two sets of driving motors 130 to synchronously rotate, the first rope 110 and the second rope 111 are tightened, the pipeline 300 is tightened, and the pipeline 300 can be horizontally hung to a specified position.
In the above process, the first rope 110 and the vertical line form a preset included angle a due to the existence of the first moving wheel 220, and the second rope 111 and the vertical line form a preset included angle B due to the existence of the second moving wheel 221, wherein the included angle a is equal to the included angle B; during the tightening process of the first rope 110 and the second rope 111, on one hand, the first rope 110 drives the first moving wheel 220 to slide along the first sliding groove 201, and on the other hand, the second rope 111 drives the second moving wheel 221 to slide along the second sliding groove 202, so that the auxiliary lifting block 200 ascends along the first rope 110 and the second rope 111; when the first moving wheel 220 moves to the extreme position along the first runner 201, the second moving wheel 221 moves synchronously to the extreme position along the second runner 202, where the angle a is equal to the angle B, preferably equal to thirty degrees, where the length of the first cord 110 at the first moving wheel 220 to the point of the first cord 110 on the duct 300 is equal to the length of the second cord 111 at the second moving wheel 221 to the point of the second cord 111 on the duct 300, and the length of the first cord 110 at the first moving wheel 220 to the point of the first cord 110 on the duct 300 is equal to the distance between the point of the first cord 110 on the duct 300 and the point of the second cord 111 on the duct 300.
When the pipeline 300 needs to be switched from the horizontal state to the vertical state, the pipeline 300 is kept in the horizontal state, and the height from the ground is greater than the length of the pipeline 300; when the first moving wheel 220 moves to the limit position along the first chute 201, the second moving wheel 221 moves to the limit position along the second chute 202 synchronously, at this time, two sets of first hydraulic cylinders 250 or two sets of second hydraulic cylinders 251 are started, when the two sets of first hydraulic cylinders 250 are started, the fixed blocks 260 on the two sets of first hydraulic cylinders 250 clamp the first rope 110, so that the first rope 110 cannot move, the driving motor 130 corresponding to the second rope 111 is started, the driving motor 130 drives the corresponding winch 120 to rotate, so that the second rope 111 is completely tightened, that is, the binding point of the second rope 111 on the pipeline 300 approximately coincides with the second moving wheel 221, and at this time, the pipeline 300 is approximately in a vertical state.
When the two sets of second hydraulic cylinders 251 are started, the second rope 111 is clamped by the fixing blocks 260 on the two sets of second hydraulic cylinders 251, so that the second rope 111 cannot move, the driving motor 130 corresponding to the first rope 110 is started, and the driving motor 130 drives the corresponding winch 120 to rotate, so that the first rope 110 is completely tightened, that is, the binding point of the first rope 110 on the pipeline 300 approximately coincides with the first moving wheel 220, and at this time, the pipeline 300 is approximately in a vertical state.
When the two sets of driving motors 130 are simultaneously started, the two sets of driving motors 130 drive the two sets of capstans 120 to synchronously rotate, and the capstans 120 drive the first ropes 110 and the second ropes 111 to synchronously ascend, so that the pipeline 300 can be hung to a specified position.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.
Claims (2)
1. A municipal pipeline lifting device, the pipeline having a first end and a second end, comprising:
a base;
a cord assembly including a first cord and a second cord;
the auxiliary hoisting block is provided with a first sliding groove and a second sliding groove;
a first moving wheel slidable along the first chute;
a second moving wheel slidable along the second chute;
a first fixed wheel and a second fixed wheel are rotatably arranged on the auxiliary hoisting block;
one end of the first rope is arranged on the base, bypasses the first fixed wheel and bypasses the first movable wheel, and the other end of the first rope is bound at the first end of the pipeline;
one end of the second rope is arranged on the base, bypasses the second fixed wheel and bypasses the second movable wheel, and the other end of the second rope is bound at the second end of the pipeline;
a fixing assembly for fixing the first rope or the second rope, a distance from a point of the first rope on the pipe to a first end of the pipe being equal to a distance from a point of the second rope on the pipe to a second end of the pipe, the fixing assembly including a first driving member and a fixing block, the fixing block being disposed on the first driving member, the first driving member being used to provide a driving force for movement of the fixing block, the fixing block being used to fix the first rope or the second rope,
a first sliding block is rotatably arranged on the first moving wheel; a second sliding block is rotatably arranged on the second moving wheel; the municipal pipeline hoisting device further comprises a first elastic piece and a second elastic piece, one end of the first elastic piece is arranged on the first sliding block, and the other end of the first elastic piece is arranged on the auxiliary hoisting block; one end of the second elastic piece is arranged on the second sliding block, the other end of the second elastic piece is arranged on the auxiliary hanging block, the municipal pipeline hoisting device further comprises a second driving piece and a third driving piece, and the second driving piece is used for providing a driving force for tightening the first rope; the third driving element is used for providing driving force for tightening the second rope.
2. The municipal pipeline hoisting device according to claim 1, wherein the fixing block is provided with a protrusion for increasing friction with the first rope or the second rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211660329.1A CN115636332B (en) | 2022-12-23 | 2022-12-23 | Municipal administration pipeline hoisting accessory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211660329.1A CN115636332B (en) | 2022-12-23 | 2022-12-23 | Municipal administration pipeline hoisting accessory |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115636332A CN115636332A (en) | 2023-01-24 |
| CN115636332B true CN115636332B (en) | 2023-04-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211660329.1A Active CN115636332B (en) | 2022-12-23 | 2022-12-23 | Municipal administration pipeline hoisting accessory |
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| CN (1) | CN115636332B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1013600A2 (en) * | 1998-12-25 | 2000-06-28 | Mitsubishi Heavy Industries, Ltd. | Seismic isolation system for a crane |
| CN113003390A (en) * | 2021-03-05 | 2021-06-22 | 重庆港森建设工程有限公司 | Adjustable assembled hoisting sling |
| CN114655831A (en) * | 2022-03-28 | 2022-06-24 | 中国化学工程第四建设有限公司 | Method for hoisting profile steel |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014003906A1 (en) * | 2013-07-01 | 2015-01-08 | Liebherr-Werk Biberach Gmbh | Tower Crane |
| CN206985510U (en) * | 2017-05-29 | 2018-02-09 | 杭州安居市政园林工程有限公司 | One kind lifts by crane stable trees hanging apparatus |
| CN210655900U (en) * | 2019-08-27 | 2020-06-02 | 芜湖实泰机械制造有限公司 | Building crane capable of adjusting object inclination |
| CN212924195U (en) * | 2020-07-17 | 2021-04-09 | 湖北中南岩土工程有限公司 | Hoisting accessory of steel reinforcement cage |
| CN215854734U (en) * | 2021-06-24 | 2022-02-18 | 河北建设集团股份有限公司 | Hoist device for building engineering |
| CN216997269U (en) * | 2022-01-24 | 2022-07-19 | 中建七局第二建筑有限公司 | Steel reinforcement cage hoist and mount construction equipment |
-
2022
- 2022-12-23 CN CN202211660329.1A patent/CN115636332B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1013600A2 (en) * | 1998-12-25 | 2000-06-28 | Mitsubishi Heavy Industries, Ltd. | Seismic isolation system for a crane |
| CN113003390A (en) * | 2021-03-05 | 2021-06-22 | 重庆港森建设工程有限公司 | Adjustable assembled hoisting sling |
| CN114655831A (en) * | 2022-03-28 | 2022-06-24 | 中国化学工程第四建设有限公司 | Method for hoisting profile steel |
Also Published As
| Publication number | Publication date |
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| CN115636332A (en) | 2023-01-24 |
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