CN115288428A - Tool type hanging die - Google Patents
Tool type hanging die Download PDFInfo
- Publication number
- CN115288428A CN115288428A CN202211046244.4A CN202211046244A CN115288428A CN 115288428 A CN115288428 A CN 115288428A CN 202211046244 A CN202211046244 A CN 202211046244A CN 115288428 A CN115288428 A CN 115288428A
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- die
- locking
- telescopic
- tool type
- fixed
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- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000000969 carrier Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000009415 formwork Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses a tool type hanging die which comprises four telescopic die frames and four corner connecting pieces; each telescopic die carrier comprises a fixed rod and sliding sleeves which are connected with each other at two ends of the fixed rod in a sliding manner, and the two sliding sleeves and the fixed rod are locked and fixed through a detachable locking structure; compared with the prior art, the four telescopic die frames and the four corner connecting pieces are connected to form the hanging die, each telescopic die frame is formed by slidably connecting the fixed rod and the two sliding sleeves, relative sliding can be generated between the two sliding sleeves and the fixed rod, so that the length of the telescopic die frame can be adjusted, and after the length is adjusted, the two sliding sleeves and the fixed rod are locked and fixed through the detachable locking structure, so that the hanging die is used in a fixed size; when different scenes are needed for reuse, the length of each telescopic die frame can be changed again to change the size of the hanging die so as to meet the use requirement, the use is repeated, and the cost is reduced.
Description
Technical Field
The invention relates to the technical field of mould hanging structures, in particular to a tool type mould hanging structure.
Background
In the residential building, because the dry-wet separation is considered, the height of the areas filled with water vapor such as kitchens and toilets is required to be lower than that of the dry areas such as living rooms and bedrooms, a plurality of mould hanging units are required to be used for enclosing and blocking, and the mould hanging units and the fixing pieces connected with the mould hanging units form a mould hanging combination.
Patent application No. CN202110699323.4 discloses a mold hanging unit, which comprises a barrier and mounting plates connected to two ends of the barrier, wherein the mounting plates comprise a first corner forming plate and a second corner forming plate, the first corner forming plate is connected to the barrier, and the second corner forming plate is connected to the first corner forming plate. The hanging die combination comprises a plurality of connecting pieces and a plurality of hanging die units, the hanging die units are connected end to end, the first corner forming plates and/or the second corner forming plates of two adjacent hanging die units are attached to each other, and the connecting pieces are connected with the attached first corner forming plates and/or the attached second corner forming plates.
The size of the suspended die combination is fixed after the suspended die combination is assembled, and the size of the suspended die combination cannot be adjusted reasonably according to different requirements.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a tool type lifting die to solve the problem that in the prior art, the size of a lifting die combination is fixed after the lifting die combination is assembled, and the size cannot be reasonably adjusted according to different requirements.
In order to achieve the purpose, the invention adopts the following technical scheme: a tool type hanging die comprises four telescopic die frames which are circumferentially arranged and corner connecting pieces which can be detachably connected between every two adjacent telescopic die frames;
every flexible die carrier all includes the dead lever and all slides the slip cap that links to each other at the both ends of dead lever, all comes the locking to be fixed through removable locking structure between two slip caps and the dead lever.
Compared with the prior art, the invention has the following beneficial effects:
the four telescopic die frames and the four corner connecting pieces are connected to form a hanging die, each telescopic die frame is formed by slidably connecting a fixed rod and two sliding sleeves, the two sliding sleeves and the fixed rod can slide relatively, so that the length of the telescopic die frame can be adjusted, and after the length is adjusted, the two sliding sleeves and the fixed rod are locked and fixed through a detachable locking structure, so that the hanging die is fixed in size for use; when different scenes are needed for reuse, the length of each telescopic die frame can be changed again to change the size of the hanging die so as to meet the use requirement, the use is repeated, and the cost is reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion A of FIG. 1;
FIG. 3 is a partial cross-sectional view taken along line B-B of FIG. 2;
fig. 4 is a schematic structural diagram of the multi-point positioning structure in fig. 1.
Reference numerals in the drawings of the specification include: the telescopic die carrier comprises a telescopic die carrier 1, a fixed rod 11, a sliding sleeve 12, a corner connecting piece 2, a right-angle connector 21, a positioning column 22, an end cover 23, an inner gear ring 24, a transmission gear 25, a detachable locking structure 3, a limiting block 31, a locking cap 32, a screw 33, a locking screw 34, an arc-shaped adjusting hole 35, a through groove 4, an installation notch 5 and an inclined strut connecting piece 6.
Detailed Description
The present invention will be described in further detail below by way of specific embodiments:
as shown in fig. 1, an embodiment of the present invention provides a tool type suspended formwork, which includes four telescopic formwork 1 circumferentially arranged and a corner connecting member 2 detachably connected between two adjacent telescopic formwork 1;
every flexible die carrier 1 all includes dead lever 11 and all slides the slip cap 12 that links to each other at the both ends of dead lever 11, all comes the locking to be fixed through removable locking structure 3 between two slip caps 12 and the dead lever 11.
Four telescopic die frames 1 and four corner connecting pieces 2 are connected to form a suspended die, each telescopic die frame is formed by slidably connecting a fixed rod 11 and two sliding sleeves 12, relative sliding can be generated between the two sliding sleeves 12 and the fixed rod 11, so that the length of the telescopic die frame 1 can be adjusted, and after the length is adjusted, the two sliding sleeves 12 and the fixed rod 11 are locked and fixed through a detachable locking structure 3, so that the suspended die is fixed in size for use; when different scenes are needed for reuse, the length of each telescopic formwork 1 can be changed again to change the size of the hanging formwork so as to meet the use requirement, the repeated utilization is carried out, and the cost is reduced.
In this embodiment: the fixed rod 11 and the sliding sleeve 12 are made of different square steel pipes in a construction site, materials are easy to obtain, the tool type hanging die has enough supporting strength, and the service life of the tool type hanging die is prolonged beneficially.
As shown in fig. 1, fig. 2 and fig. 3, according to another embodiment of the present invention, in the tool type lifting die, through grooves 4 are respectively formed on outer walls of the fixing rods 11 along an axial direction thereof, mounting notches 5 are respectively formed at opposite ends of the two sliding sleeves 12, and each detachable locking structure 3 includes a limiting block 31 and a locking cap 32;
the limiting block 31 is connected in the through groove 4 in a sliding manner and is connected with a screw 33 which penetrates through the corresponding mounting notch 5;
the locking cap 32 is in threaded connection with the threaded rod 33 and is locked and fixed after being pressed against the corresponding sliding sleeve 12.
In this embodiment: the width of the notch of the through groove 4 is smaller than the width of the groove bottom, and the width of the limiting block 31 is larger than the width of the notch of the through groove 4 and smaller than the width of the groove bottom of the through groove 4, so that the limiting block 31 can stably move in the through groove 4; due to the structural design of the through groove 4, the limiting block 31 can be moved out from the end part of the through groove 4, and the limiting block 31 and the fixing rod 11 can be conveniently detached. The locking cap 32 is rotated to be in threaded connection with the screw 33 and enable the locking cap 32 to be abutted against the sliding sleeve 12, and at the moment, the limiting block 31 is abutted against the through groove 4, so that locking and fixing between the fixed rod 11 and the sliding sleeve 12 are completed; the locking cap 32 is rotated reversely to move the locking cap 32 in the direction away from the sliding sleeve 12, the locking cap 32 abuts against the sliding sleeve 12, the inner wall of the through groove 4 is separated from the stopper 31, the stopper 31 can move in the through groove 4, and the fixed rod 11 and the sliding sleeve 12 can move relatively to adjust the length of the telescopic die carrier 1. The design of the mounting notches 5 facilitates the insertion and removal of the threaded rod 33 into and out of it, so that the detachable locking structure 3 can be quickly fitted between the fixed rod 11 and the sliding sleeve 12 or removed from between the fixed rod 11 and the sliding sleeve 12.
Based on the scheme, each adopted detachable locking structure 3 further comprises a locking screw 34, and one end of each locking screw 34 freely penetrates through the locking cap 32 and then is in threaded connection with a fixing groove formed in the outer wall of the corresponding sliding sleeve 12; the locking screw 34 penetrates through the locking cap 32 and then is in threaded connection with the fixing groove, so that the assembly stability of the locking cap 32 is improved, and the connection stability between the fixing rod 11 and the sliding sleeve 12 is improved; when the tool type lifting die is used, the requirement on the connection stability is high, and the influence on the quality of the concrete after pouring and forming due to the deformation of the tool type lifting die in the concrete pouring process is avoided.
An arc-shaped adjusting hole 35 is formed in the locking cap 32, the circle center of the arc-shaped adjusting hole 35 is located on the rotation central axis of the locking cap 32, and one end of a locking screw 34 freely penetrates through the arc-shaped adjusting hole 35 and then is in threaded connection with the fixing groove.
After the locking cap 32 is rotated to be connected with the screw rod 33 to lock and fix the fixed rod 11 and the sliding sleeve 12, the locking screw 34 can penetrate through the arc-shaped adjusting hole 35 and then is in threaded connection with the fixed groove; if the arc-shaped adjusting hole 35 is an arc-shaped hole instead of a small round hole, the arc-shaped adjusting hole 35 can be aligned and communicated with the fixing groove under different conditions, so that one end of the locking screw 34 freely penetrates through the arc-shaped adjusting hole 35 and then is in threaded connection with the fixing groove; the radian of concrete arc regulation hole 35 can select 300 degrees, 315 degrees or 330 degrees etc. between 300 degrees to 330 degrees, makes locking cap 32 satisfy structural stability, and arc regulation hole 35 has more enough angle of regulation simultaneously and keeps the intercommunication with the fixed slot to make 34 one end of locking screw freely pass behind the arc regulation hole 35 with fixed slot threaded connection.
A mark aligned with the fixing groove is provided on the outer wall of the sliding sleeve 12, and the mark may be a scale mark, so that the locking screw 34 moves in the arc-shaped adjusting hole 35 to be screwed into the fixing groove for connection.
As shown in fig. 1 and 4, according to another embodiment of the present invention, each of the corner connectors 2 includes a right-angle connector 21 disposed between two adjacent telescopic mold frames 1, and one end of each of the two telescopic mold frames 1 is embedded into two ends of the right-angle connector 21 in a one-to-one correspondence manner and then locked and fixed by a multi-point positioning structure.
In this embodiment: come stable linking to each other between two adjacent flexible die carrier 1 through corner connecting piece 2 and multiple spot location structure, the right angle connector 21 of specifically adopting is right angle shape side pipe, and the end of separating from each other of two slip caps 12 in flexible die carrier 1 all has the spliced pole in the welding, and it is fixed to adopt multiple spot location structure locking again after inserting the spliced pole in right angle connector 21 one end, then accomplishes being connected between right angle connector 21 and a flexible die carrier 1.
Based on the above scheme, each of the adopted multi-point positioning structures comprises a positioning column 22 and a driving part;
the three positioning columns 22 are not collinear, and three through holes formed in one end of the right-angle connector 21 and three locking grooves formed in the end portion of the corresponding telescopic die carrier 1 are arranged in the three positioning columns 22 in a matched mode;
the driving part is connected with one end of each of the three positioning columns 22 and is used for driving the three positioning columns 22 to rotate synchronously;
during assembly, after one end of the telescopic die carrier 1 is embedded into one end of the right-angle connector 21, the three locking grooves are aligned and communicated with the three through holes in a one-to-one correspondence mode, and the three positioning columns 22 are connected with the three locking groove internal threads in a one-to-one correspondence mode after penetrating through the three through holes and then correspondingly screwed in.
The three locking grooves are formed in the connecting column, when the connecting column is inserted into one end of the right-angle connector 21 until the connecting column is abutted and cannot move, the three locking grooves are correspondingly aligned and communicated with the three through holes one by one, then one ends of the three positioning columns 22 are correspondingly aligned with the three through holes one by one, the driving part is rotated to enable the three positioning columns 22 to penetrate through the three through holes and then correspondingly screwed into the three locking grooves one by one to be connected in a threaded mode, and three-point positioning fixing is adopted between the connecting column and the right-angle connector 21 to improve the connecting stability between the connecting column and the right-angle connector 21; the driving part is rotated reversely, so that the three positioning columns 22 are screwed out of the three locking grooves and then are moved out of the three through holes, locking between the connecting columns and the right-angle connector 21 is released, and the adjustment of the process is convenient and quick.
In this embodiment: the driving part comprises an end cover 23, an inner gear ring 24 and a transmission gear 25;
wherein, the inner gear ring 24 is fixedly connected on one end surface of the inner gear ring 24;
and three transmission gears 25 are arranged and are all rotatably connected to the end cover 23, and the three transmission gears 25 are also all meshed with the inner gear ring 24 and are fixedly connected with one ends of the three positioning columns 22 in a one-to-one correspondence manner.
Here, the end cover 23 and the inner gear ring 24 can be integrally formed, the end cover 23 and the inner gear ring 24 are connected to form a groove body with an opening at one end, and the transmission gear 25 is rotatably arranged in the groove body, so that the end cover 23 and the inner gear ring 24 are matched to play a certain protection role in the installation of the transmission gear 25; the free ends of the three positioning columns 22 are correspondingly abutted against one end of the three through holes one by one, the inner gear ring 24 is rotated to enable the three transmission gears 25 to synchronously rotate, the three positioning columns 22 are driven to synchronously rotate to penetrate through the three through holes and then are correspondingly screwed into the three locking grooves one by one for threaded connection, and three-point positioning and fixing are adopted between the connecting column and the right-angle connector 21; and the inner gear ring 24 is rotated reversely, and then the free ends of the three positioning columns 22 move reversely to move out of the three locking grooves and the three through holes, so that the locking between the connecting column and the right-angle connector 21 is released.
According to another embodiment of the invention, as shown in fig. 1, a tool type hanging mould is provided, wherein a diagonal brace connecting piece 6 is detachably connected between two adjacent telescopic mould frames 1.
The method comprises the following steps: the bracing connection piece 6 is connected between corresponding a slip cap 12 in two adjacent flexible die carriers 1, improves the structural stability after this instrument formula hangs the mould assembly, and the bracing connection piece 6 specifically can adopt the bolt to come to link to each other with a slip cap 12 screw thread in the flexible die carrier 1, and it is connected or the split is all convenient and swift.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (9)
1. A tool type hanging die is characterized by comprising four telescopic die frames which are circumferentially arranged and corner connecting pieces which can be detachably connected between every two adjacent telescopic die frames;
every flexible die carrier all includes the dead lever and all slides the slip cap that links to each other at the both ends of dead lever, all comes the locking through removable locking structure between two slip caps and the dead lever to fix.
2. The tool type hoist die of claim 1, wherein: all seted up logical groove along its axial direction on the dead lever outer wall, the installation breach has all been opened to two slip caps one end in opposite directions, every removable locking structure all includes:
the limiting blocks are connected in the through grooves in a sliding mode and connected with screws penetrating through the corresponding mounting notches;
and the locking cap is in threaded connection with the screw and is locked and fixed after being propped against the corresponding sliding sleeve.
3. The tool type hoist die of claim 2, wherein: each removable locking structure still includes:
and one end of the locking screw freely penetrates through the locking cap and then is in threaded connection with a fixed groove formed in the outer wall of the corresponding sliding sleeve.
4. The tool type hoisting die of claim 3, wherein: an arc-shaped adjusting hole is formed in the locking cap, the circle center of the arc-shaped adjusting hole is located on the rotation central axis of the locking cap, and one end of a locking screw freely penetrates through the arc-shaped adjusting hole and then is in threaded connection with the fixing groove.
5. The tool type hoist die of claim 4, wherein: the radian of the arc-shaped adjusting hole is between 300 and 330 degrees.
6. A tool sling die as defined in any one of claims 1 to 5, wherein: every the corner connecting piece all includes the right angle connector that sets up between two adjacent flexible die carriers, and the one end one-to-one of two flexible die carriers all is fixed through the locking of multiple spot location structure behind embedding in the right angle connector both ends.
7. The tool type hoist die of claim 6, wherein: each of the multi-point positioning structures comprises:
the three positioning columns are provided with three non-collinear positioning columns, and are provided with three through holes formed in one end of the right-angle connector and three locking grooves formed in the end parts of the corresponding telescopic die frames in a matched mode;
the driving part is connected with one end of each positioning column and is used for driving the three positioning columns to synchronously rotate;
during assembly, after one end of the telescopic die carrier is embedded into one end of the right-angle connector, the three locking grooves are aligned and communicated with the three through holes in a one-to-one correspondence mode, and the three positioning columns penetrate through the three through holes in a one-to-one correspondence mode and then are connected with the three locking groove internal threads in a corresponding screwing mode.
8. The tool-type hoist die of claim 7, wherein: the driving part includes:
an end cap;
the inner gear ring is fixedly connected to one end face of the inner gear ring;
and three transmission gears are rotatably connected to the end cover, and are meshed with the inner gear ring and fixedly connected with one ends of the three positioning columns in a one-to-one correspondence manner.
9. The tool type hoist die of claim 1, wherein: and inclined strut connecting sheets can be detachably connected between every two adjacent telescopic die frames.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211046244.4A CN115288428B (en) | 2022-08-30 | 2022-08-30 | Tool type hanging die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211046244.4A CN115288428B (en) | 2022-08-30 | 2022-08-30 | Tool type hanging die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115288428A true CN115288428A (en) | 2022-11-04 |
| CN115288428B CN115288428B (en) | 2024-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211046244.4A Active CN115288428B (en) | 2022-08-30 | 2022-08-30 | Tool type hanging die |
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| Country | Link |
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| CN (1) | CN115288428B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5492197A (en) * | 1993-02-18 | 1996-02-20 | Yonahara; Yoshihiro | Frame parts for temporary ladder |
| CN102678914A (en) * | 2012-05-02 | 2012-09-19 | 浙江勤达旅游用品有限公司 | Electric/manual double-inputting speed reducer for worm gear speed-reducing motor |
| CN103510686A (en) * | 2013-09-24 | 2014-01-15 | 鹏力有限公司 | Self-mounted and self-dismounted ceiling maintaining cover |
| US20150194081A1 (en) * | 2014-01-08 | 2015-07-09 | Calvin R. Peters | Flag and banner hanging apparatus and install method |
| CN104963561A (en) * | 2015-07-24 | 2015-10-07 | 烟台三环科技有限公司 | Lockset with electromechanical two-way open function |
| CN106088573A (en) * | 2016-07-13 | 2016-11-09 | 李长生 | A kind of assembled stretches mould bases |
| CN205745121U (en) * | 2016-06-29 | 2016-11-30 | 广东新宝电器股份有限公司 | Transmission and food processor thereof |
| CN208056625U (en) * | 2018-04-12 | 2018-11-06 | 陕西建工第九建设集团有限公司 | A kind of toilet drop plate hangs mould |
| CN109676521A (en) * | 2019-01-24 | 2019-04-26 | 浙江机电职业技术学院 | A kind of safety-type abrasive wheel cutting machine modular construction |
| CN213808686U (en) * | 2020-11-26 | 2021-07-27 | 江苏马步崎电机制造有限公司 | Coupling type planetary gear speed reducer |
| CN114109025A (en) * | 2021-11-03 | 2022-03-01 | 中国一冶集团有限公司 | Plate lowering and formwork hanging device and construction method |
-
2022
- 2022-08-30 CN CN202211046244.4A patent/CN115288428B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5492197A (en) * | 1993-02-18 | 1996-02-20 | Yonahara; Yoshihiro | Frame parts for temporary ladder |
| CN102678914A (en) * | 2012-05-02 | 2012-09-19 | 浙江勤达旅游用品有限公司 | Electric/manual double-inputting speed reducer for worm gear speed-reducing motor |
| CN103510686A (en) * | 2013-09-24 | 2014-01-15 | 鹏力有限公司 | Self-mounted and self-dismounted ceiling maintaining cover |
| US20150194081A1 (en) * | 2014-01-08 | 2015-07-09 | Calvin R. Peters | Flag and banner hanging apparatus and install method |
| CN104963561A (en) * | 2015-07-24 | 2015-10-07 | 烟台三环科技有限公司 | Lockset with electromechanical two-way open function |
| CN205745121U (en) * | 2016-06-29 | 2016-11-30 | 广东新宝电器股份有限公司 | Transmission and food processor thereof |
| CN106088573A (en) * | 2016-07-13 | 2016-11-09 | 李长生 | A kind of assembled stretches mould bases |
| CN208056625U (en) * | 2018-04-12 | 2018-11-06 | 陕西建工第九建设集团有限公司 | A kind of toilet drop plate hangs mould |
| CN109676521A (en) * | 2019-01-24 | 2019-04-26 | 浙江机电职业技术学院 | A kind of safety-type abrasive wheel cutting machine modular construction |
| CN213808686U (en) * | 2020-11-26 | 2021-07-27 | 江苏马步崎电机制造有限公司 | Coupling type planetary gear speed reducer |
| CN114109025A (en) * | 2021-11-03 | 2022-03-01 | 中国一冶集团有限公司 | Plate lowering and formwork hanging device and construction method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115288428B (en) | 2024-09-13 |
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