CN111824929A - Prefabricated plate hoist device for building - Google Patents
Prefabricated plate hoist device for building Download PDFInfo
- Publication number
- CN111824929A CN111824929A CN202010568203.6A CN202010568203A CN111824929A CN 111824929 A CN111824929 A CN 111824929A CN 202010568203 A CN202010568203 A CN 202010568203A CN 111824929 A CN111824929 A CN 111824929A
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- CN
- China
- Prior art keywords
- clamping
- clamping part
- hoisting
- prefabricated
- plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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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
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
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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
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
- B66C1/48—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces to vertical edge portions of sheets, tubes, or like thin or thin-walled articles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention provides a hoisting device for a prefabricated plate for a building, wherein the hoisting device for the prefabricated plate for the building comprises a tower crane hook, a hoisting beam, an upper connecting rope, a lower connecting rope and a hoisting assembly; the hoisting beam is suspended below the lifting hook of the tower crane; the upper end of the upper connecting rope is connected to the tower crane lifting hook, and the lower end of the upper connecting rope is connected to the hoisting beam; the upper end of the lower connecting rope is connected to the hoisting beam; the hoisting assembly comprises a connecting piece and a clamping piece, the connecting piece is fixed at the lower end of the lower connecting rope, and the clamping piece is detachably connected and installed at the lower end of the connecting piece and used for clamping the precast slab. The technical scheme provided by the invention has the beneficial effects that: make prefabricated plate demountable installation in the holder, avoid setting up the built-in fitting on the prefabricated plate, can reduce the damage to the prefabricated plate, strengthen the tightness of prefabricated plate, can strengthen the stability that the prefabricated plate was fixed when the transport, improve the security.
Description
Technical Field
The invention relates to the technical field of building material handling equipment, in particular to a prefabricated plate hoisting device for a building.
Background
In prefabricated plate manufacturing enterprises, in order to deposit and transport, the prefabricated plate needs to be moved, and because its material is that cement is poured, weight is great, needs special hoisting structure. The hoisting structure that the tradition was used is for punching on the prefabricated plate, utilizes wire rope to hoist after passing the hole, and this kind of hoist and mount mode is more troublesome, and the security is also not high moreover. At present, the improved mode is that when a precast slab is poured, a blind hole is reserved, then an expansion screw is placed in the blind hole, or a pre-tightening hook is pre-tightened and fixed, then a suspension arm and a pre-tightening piece are connected through a connecting hardware fitting, so that the method is dangerous during hoisting, and safety accidents are easy to happen.
Disclosure of Invention
In view of the above, embodiments of the present invention provide a hoisting apparatus for building precast slabs, which allows precast slabs to be detachably mounted in a clamping member, avoids providing embedded parts on the precast slabs, reduces damage to the precast slabs, increases the firmness of the precast slabs, increases the stability of the precast slabs being fixed during transportation, and improves safety.
The embodiment of the invention provides a hoisting device for a prefabricated slab for a building, which comprises:
a tower crane hook;
the hoisting beam is suspended below the lifting hook of the tower crane;
the upper end of the upper connecting rope is connected to the tower crane lifting hook, and the lower end of the upper connecting rope is connected to the hoisting beam;
the upper end of the lower connecting rope is connected with the hoisting beam; and the number of the first and second groups,
the hoisting assembly comprises a connecting piece and a clamping piece, the connecting piece is fixed at the lower end of the lower connecting rope, and the clamping piece is detachably connected and arranged at the lower end of the connecting piece and used for clamping the precast slab;
the clamping piece comprises a first clamping part and a second clamping part which are oppositely arranged, and the second clamping part is provided with a clamping position and an opening position relative to the first clamping part;
when the second clamping part is positioned at the clamping position, the second clamping part is connected with the first clamping part to form a clamping space for clamping the precast slab; when the second clamping part is located at the opening position, the second clamping part is far away from the first clamping part, so that the precast slab is taken down from the clamping space.
Furthermore, the first clamping part and the second clamping part are U-shaped, and openings of the first clamping part and the second clamping part are oppositely arranged;
the first clamping part is close to one end of the second clamping part and extends towards the second clamping part in a protruding mode to form a connecting portion, a limiting groove matched with the connecting portion is formed in the position, opposite to the connecting portion, of the second clamping part, one end, close to the second clamping part, of the connecting portion is connected with the bottom wall of the limiting groove through a first spring, the second clamping part is located in the clamping position, and the first spring is in a stretching state.
Further, the first clamping portion and the second clamping portion are arranged oppositely in the horizontal direction, and the connecting portion and the first spring extend in the horizontal direction.
Furthermore, a limiting through hole extending in the vertical direction is arranged in the second clamping part in a penetrating mode, and internal threads are arranged on the inner side wall of the limiting through hole and used for being matched with a positioning screw to limit the prefabricated plate in the vertical direction; and/or the presence of a gas in the gas,
the first clamping part is provided with a limiting through hole extending in the vertical direction in a penetrating mode, and inner threads are arranged on the inner side wall of the limiting through hole and used for being matched with a positioning screw to limit the prefabricated plate in the vertical direction.
Furthermore, the lower end of the positioning screw is in threaded connection with a positioning block, the positioning block extends in the vertical direction and is in a cylindrical shape, the upper end of the positioning block is in an opening shape, the lower end of the positioning block is in a sealing cover shape, and rubber is arranged at the bottom of the positioning block.
Furthermore, the number of the hoisting assemblies is two, and the two hoisting assemblies are respectively connected with the two ends of the hoisting beam through the lower connecting ropes.
Furthermore, the first clamping part and the second clamping part respectively comprise an upper clamping plate and a lower clamping plate which are arranged at intervals in the vertical direction, the upper clamping plate and the lower clamping plate are connected through a connecting plate, the connecting plate extends in the vertical direction, and the inner side wall of the connecting plate is used for abutting against the end part of the precast slab;
the upper clamping plates of the two clamping pieces are connected through an elastic piece, and when the clamping pieces are fixed at the end parts of the precast slabs, the elastic piece is in a stretching state.
Further, the elastic part is a spring, and two ends of the spring are detachably connected with the upper clamping plate respectively.
Furthermore, the connecting piece comprises a fixing part and a positioning convex strip, the fixing part is fixed at the lower end of the lower connecting rope, and the positioning convex strip extends along the horizontal direction and is fixed at the lower end of the fixing part;
the opening just diapire is the recess of circular setting up seted up at second clamping part top, in order to supply the location sand grip is rotatory, the inside protruding stopper that forms two relative and intervals settings of stretching in the lateral wall upper end of recess, in order to form the confession the passageway that the location sand grip passes through.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the prefabricated plate is arranged in the clamping piece through the hoisting assembly consisting of the connecting piece and the clamping piece, so that the traditional method that the prefabricated plate is provided with the embedded piece and is fixed through threaded connection can be omitted, the stability of the prefabricated plate during transportation is enhanced, the safety is improved, and meanwhile, the manufacturing efficiency of the prefabricated plate is improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a hoisting device for building precast slabs provided by the invention;
FIG. 2 is a cross-sectional view of the clamp of FIG. 1;
FIG. 3 is an enlarged schematic view at A in FIG. 2;
FIG. 4 is a cross-sectional view of the attachment member of FIG. 1 attached to a clamping member;
FIG. 5 is an enlarged schematic view at B in FIG. 4;
fig. 6 is a schematic structural view of the first clamping portion in fig. 1.
In the figure: prefabricated plate hoist device 100 for building, tower machine lifting hook 1, hoist and mount roof beam 2, go up and connect rope 3, connect rope 4 down, hoist and mount subassembly 5, holder 51, first clamping part 511, second clamping part 512, centre gripping space 513, connecting portion 514, first spring 515, recess 516, positioning groove 517, connecting piece 52, fixed part 521, location sand grip 522, set screw 6, locating piece 7, rubber 8, second spring 9, go up grip 10, lower grip 11, connecting plate 12, elastic component 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1, an embodiment of the present invention provides a hoisting device 100 for a building precast slab, including a tower crane hook 1, a hoisting beam 2, an upper connecting rope 3, a lower connecting rope 4, and a hoisting assembly 5. The hoisting beam 2 is suspended below the tower crane hook 1, the upper end of the upper connecting rope 3 is connected with the tower crane hook 1, the lower end is connected with the hoisting beam 2, and the upper end of the lower connecting rope 4 is connected with the hoisting beam 2. The hoisting assembly 5 comprises a connecting piece 52 and a clamping piece 51, wherein the connecting piece 52 is fixed at the lower end of the lower connecting rope 4, and the clamping piece 51 is detachably connected and arranged at the lower end of the connecting piece 52 and used for clamping the precast slab.
According to the technical scheme provided by the invention, the hoisting assembly 5 consisting of the connecting piece 52 and the clamping piece 51 is arranged, and the precast slab is arranged in the clamping piece 51, so that the traditional precast slab is not provided with an embedded part, and the precast slab is fixed through threaded connection, therefore, the stability of the precast slab being fixed during transportation is enhanced, the safety is improved, and the manufacturing efficiency of the precast slab is improved.
The hoisting assemblies 5 can be provided in plurality, in the embodiment, two hoisting assemblies 5 are provided and are respectively connected with two ends of the hoisting beam 2 through a lower connecting rope 4, when the prefabricated slab is installed, the two hoisting assemblies 5 are respectively installed at two ends of the prefabricated slab, so that the stability of the prefabricated slab being fixed during transportation can be enhanced. The upper connecting rope 3 and the lower connecting rope 4 may be steel wire ropes.
In other embodiments, the clamping members 51 may be configured to extend horizontally and have a cylindrical shape, two opposite ends of the clamping members 51 are open, the other end is closed to form a receiving cavity adapted to the prefabricated panel, and positioning through holes are formed through the upper and side portions of the clamping members 51 for cooperating with positioning screws to fix the prefabricated panel in the receiving cavity.
As shown in fig. 2 and 3, in the present embodiment, the clamping member 51 includes a first clamping portion 511 and a second clamping portion 512 which are oppositely disposed, and the second clamping portion 512 has a clamping position and an opening position relative to the first clamping portion 511. When the second clamping part 512 is located at the clamping position, the second clamping part 512 is connected with the first clamping part 511 to form a clamping space 513 for clamping the precast slab; when the second clamping part 512 is located at the open position, the second clamping part 512 is far away from the first clamping part 511, so that the prefabricated slab is taken down from the clamping space 513. So set up, make the prefabricated plate demountable installation in the holder 51 avoids setting up the built-in fitting on the prefabricated plate, can reduce the damage to the prefabricated plate, strengthens the tightness of prefabricated plate.
Specifically, first clamping part 511 with second clamping part 512 is the U-shaped and the opening sets up relatively, first clamping part 511 is close to the one end of second clamping part 512 is towards second clamping part 512 protruding formation connecting portion 514, second clamping part 512 with the relative position of connecting portion 514 is equipped with the spacing recess (not mark in the figure) of connecting portion 514 looks adaptation, the connecting portion 514 is close to the one end of second clamping part 512 with the diapire of spacing recess passes through first spring 515 and connects, second clamping part 512 is located the clamping position, first spring 515 is in tensile state. With this arrangement, the clamping members 51 can be adjusted according to the width of the prefabricated panels, so that there is no gap between the clamping members 51 and the prefabricated panels, and the stability of the prefabricated panels fixed in the clamping members 51 can be enhanced, so that the clamping members 51 can be adapted to prefabricated panels of different specifications. After the first clamping part 511 and the second clamping part 512 are pulled towards opposite directions, the first spring 515 is in the pulled state, the precast slab is placed between the first clamping part 511 and the second clamping part 512, and the first clamping part 511 and the second clamping part 512 are abutted against two ends of the precast slab due to the elastic recovery action of the first spring 515, so that the precast slab is fixed in the clamping piece 51, and the operation of installing and detaching the precast slab in the clamping piece 51 is simplified. In other embodiments, the first clamping portion 511 and the second clamping portion 512 may be in a snap connection, a screw connection, or other manners.
Furthermore, the first clamping portion 511 and the second clamping portion 512 may be disposed opposite to each other in the vertical direction, in this embodiment, the first clamping portion 511 and the second clamping portion 512 are disposed opposite to each other in the horizontal direction, and both the connecting portion 514 and the first spring 515 extend in the horizontal direction, so that the tensile force borne by the first spring 515 can be reduced, and the service life of the first spring 515 can be increased.
The second clamping portion 512 is provided with a limiting through hole (not labeled in the figures) extending in the vertical direction, and the inner side wall of the limiting through hole is provided with internal threads for cooperating with the positioning screw 6 to limit the prefabricated slab in the vertical direction. The first clamping part 511 is provided with a limiting through hole (not labeled in the figures) extending in the up-down direction, and the inner side wall of the limiting through hole is provided with internal threads for matching with the positioning screw 6 to limit the prefabricated slab in the up-down direction, so that the prefabricated slab can be prevented from moving up and down in the first clamping part 511 and the second clamping part 512, and the stability of the prefabricated slab during the transportation process can be enhanced.
The lower end of the positioning screw 6 is in threaded connection with a positioning block 7, the positioning block 7 extends in the vertical direction and is in a cylindrical shape, the upper end of the positioning block 7 is in an open arrangement, the lower end of the positioning block 7 is in a sealing cover arrangement, rubber 8 is arranged at the bottom of the positioning block 7, the positioning screw 6 is screwed tightly, the precast slab is abutted to the rubber 8, and the precast slab can be prevented from being damaged due to the fact that the positioning screw 6 directly contacts with the precast slab.
The first clamping portion 511 and the second clamping portion 512 each include an upper clamping plate 10 and a lower clamping plate 11 arranged at an interval in the up-down direction, the upper clamping plate 10 and the lower clamping plate 11 are connected by a connecting plate 12, the connecting plate 12 extends in the up-down direction, in this embodiment, the connecting plate 12 is disposed at the end portions of the upper clamping plate 10 and the lower clamping plate 11 (see fig. 6), and the inner side wall of the connecting plate 12 is used for abutting against the end portion of the prefabricated slab. As shown in FIG. 1, the upper clamping plates 10 of the two clamping members 51 are connected by an elastic member 13, and the elastic member 13 is in a stretched state when the clamping members 51 are fixed to the ends of the prefabricated panels. The two connecting plates 12 are respectively abutted against the ends of the prefabricated panels to fix the prefabricated panels between the two clamping members 51 while preventing the prefabricated panels from moving in the clamping members 51, and the stability of the prefabricated panels fixed in the clamping members 51 can be enhanced, so that the clamping members 51 can be adapted to prefabricated panels of different lengths.
In this embodiment, the elastic member 13 is a spring, and two ends of the spring are detachably connected to the upper clamping plate 10, so that the prefabricated plate can be conveniently fixed in the two clamping members 51, the spring is installed between the two connecting members 51, and meanwhile, the springs with different lengths can be replaced according to the length of the prefabricated plate, thereby avoiding the damage of the spring caused by the overlong prefabricated plate.
As shown in fig. 4 and 5, the connector 52 includes a fixing portion 521 and a positioning rib 522, the fixing portion 521 is fixed to the lower end of the lower connecting string 4, and the positioning rib 522 extends horizontally and is fixed to the lower end of the fixing portion 521. The opening is seted up at second clamping part 512 top up and the diapire is the recess 516 of circular setting up, for the confession location sand grip 522 is rotatory, the inside protruding stopper that forms two relative and intervals settings of stretching in lateral wall upper end of recess 516, in order to form the confession the passageway that location sand grip 522 passes through, so set up, simplified connecting piece 52 demountable installation in operation on holder 51 aligns the passageway with location sand grip 522, places in recess 516, will fix a position sand grip 522 rotatory again to with the passageway is the direction of acute angle, can realize connecting piece 52 and holder 51 fixed.
Further, as shown in fig. 2 and 3, the bottom wall is provided with a second spring 9 extending up and down, the second spring 9 has an initial state and a compressed state, when the connecting member 52 is mounted on the clamping member 51, the second spring 9 is in the compressed state, which can enhance the friction force between the connecting member 52 and the clamping member 51, and enhance the stability of the connecting member 52 mounted on the clamping member 51.
The bottom of the two limiting blocks is provided with a positioning groove 517 matched with the positioning convex strip 522, when the connecting piece 52 is installed on the clamping piece 51, the positioning convex strip 522 is located in the positioning groove 517, so that the positioning convex strip 522 cannot rotate in the process of carrying the prefabricated plate, and the hidden danger that the prefabricated plate falls when the positioning convex strip 522 rotates to the channel can be eliminated.
The positioning groove 517 is perpendicular to the channel, increasing the angle required for the positioning convex strip 522 to rotate from the channel to the positioning groove 517, and further reducing the possibility that the positioning convex strip 522 rotates to the channel.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. The utility model provides a prefabricated plate hoist device for building which characterized in that includes:
a tower crane hook;
the hoisting beam is suspended below the lifting hook of the tower crane;
the upper end of the upper connecting rope is connected to the tower crane lifting hook, and the lower end of the upper connecting rope is connected to the hoisting beam;
the upper end of the lower connecting rope is connected with the hoisting beam; and the number of the first and second groups,
the hoisting assembly comprises a connecting piece and a clamping piece, the connecting piece is fixed at the lower end of the lower connecting rope, and the clamping piece is detachably connected and arranged at the lower end of the connecting piece and used for clamping the precast slab;
the clamping piece comprises a first clamping part and a second clamping part which are oppositely arranged, and the second clamping part is provided with a clamping position and an opening position relative to the first clamping part;
when the second clamping part is positioned at the clamping position, the second clamping part is connected with the first clamping part to form a clamping space for clamping the precast slab; when the second clamping part is located at the opening position, the second clamping part is far away from the first clamping part, so that the precast slab is taken down from the clamping space.
2. A hoist for a prefabricated panel for a building as claimed in claim 1, wherein the first clamping portion and the second clamping portion are U-shaped and have openings facing each other;
the first clamping part is close to one end of the second clamping part and extends towards the second clamping part in a protruding mode to form a connecting portion, a limiting groove matched with the connecting portion is formed in the position, opposite to the connecting portion, of the second clamping part, one end, close to the second clamping part, of the connecting portion is connected with the bottom wall of the limiting groove through a first spring, the second clamping part is located in the clamping position, and the first spring is in a stretching state.
3. A hoist for construction precast panels according to claim 2, wherein the first and second clamping portions are horizontally opposed, and the connecting portion and the first spring are horizontally extended.
4. A prefabricated slab hoisting device for buildings as claimed in claim 3, wherein the second clamping part is provided with a limiting through hole extending in the up-down direction, and the inner side wall of the limiting through hole is provided with internal threads for cooperating with a positioning screw to limit the prefabricated slab in the up-down direction; and/or the presence of a gas in the gas,
the first clamping part is provided with a limiting through hole extending in the vertical direction in a penetrating mode, and inner threads are arranged on the inner side wall of the limiting through hole and used for being matched with a positioning screw to limit the prefabricated plate in the vertical direction.
5. A prefabricated plate hoisting device for buildings as claimed in claim 4, wherein the lower end of the positioning screw is in threaded connection with a positioning block, the positioning block extends in the up-down direction and is in a cylindrical shape, the upper end of the positioning block is in an open arrangement, the lower end of the positioning block is in a closed arrangement, and the bottom of the positioning block is provided with rubber.
6. A prefabricated slab hoisting device for buildings as claimed in claim 3, wherein the hoisting assembly is provided with two, which are respectively connected with both ends of the hoisting beam through one of the lower connecting ropes.
7. A prefabricated slab hoisting device for buildings as claimed in claim 6, wherein the first clamping part and the second clamping part each comprise an upper clamping plate and a lower clamping plate which are arranged at intervals up and down, the upper clamping plate and the lower clamping plate are connected through a connecting plate, the connecting plate extends up and down, and the inner side wall of the connecting plate is used for abutting against the end part of the prefabricated slab;
the upper clamping plates of the two clamping pieces are connected through an elastic piece, and when the clamping pieces are fixed at the end parts of the precast slabs, the elastic piece is in a stretching state.
8. A hoist for precast slabs for buildings according to claim 7, wherein the elastic member is a spring, and both ends of the spring are detachably connected to the upper clamping plate, respectively.
9. A prefabricated panel hoisting device for buildings as claimed in claim 3, wherein the connecting member comprises a fixing portion fixed to the lower end of the lower connecting rope and a positioning rib extending horizontally and fixed to the lower end of the fixing portion;
the opening just diapire is the recess of circular setting up seted up at second clamping part top, in order to supply the location sand grip is rotatory, the inside protruding stopper that forms two relative and intervals settings of stretching in the lateral wall upper end of recess, in order to form the confession the passageway that the location sand grip passes through.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010568203.6A CN111824929A (en) | 2020-06-19 | 2020-06-19 | Prefabricated plate hoist device for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010568203.6A CN111824929A (en) | 2020-06-19 | 2020-06-19 | Prefabricated plate hoist device for building |
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| Publication Number | Publication Date |
|---|---|
| CN111824929A true CN111824929A (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010568203.6A Pending CN111824929A (en) | 2020-06-19 | 2020-06-19 | Prefabricated plate hoist device for building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860142A (en) * | 2021-10-19 | 2021-12-31 | 中国建筑第二工程局有限公司 | Prefabricated component hoist of assembly type structure |
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2020
- 2020-06-19 CN CN202010568203.6A patent/CN111824929A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860142A (en) * | 2021-10-19 | 2021-12-31 | 中国建筑第二工程局有限公司 | Prefabricated component hoist of assembly type structure |
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