CN114772455A - Temporary hoisting point installation system and method - Google Patents
Temporary hoisting point installation system and method Download PDFInfo
- Publication number
- CN114772455A CN114772455A CN202210500760.3A CN202210500760A CN114772455A CN 114772455 A CN114772455 A CN 114772455A CN 202210500760 A CN202210500760 A CN 202210500760A CN 114772455 A CN114772455 A CN 114772455A
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- pull rod
- bottom plate
- box girder
- hoisting
- girder bottom
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009434 installation Methods 0.000 title claims abstract description 23
- 239000000725 suspension Substances 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 18
- 239000010959 steel Substances 0.000 abstract description 18
- 238000010276 construction Methods 0.000 abstract description 14
- 239000000463 material Substances 0.000 abstract description 3
- 230000001681 protective effect Effects 0.000 description 10
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- -1 polytetrafluoroethylene Polymers 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
- B66D1/74—Capstans
- B66D1/7442—Capstans having a horizontal rotation axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention discloses a temporary hoisting point installation system and a temporary hoisting point installation method, wherein the temporary hoisting point installation system comprises a box girder bottom plate, a driving mechanism is suspended above the box girder bottom plate, the output end of the driving mechanism is connected with a hoisting point through a hoisting assembly, the hoisting assembly movably penetrates through the box girder bottom plate, the hoisting point is propped at the bottom of the box girder bottom plate through driving the hoisting assembly, and a locking mechanism for fixing the hoisting assembly is further arranged on the box girder bottom plate. The temporary hoisting point is installed and matched with simple equipment such as a pulley block and the like to realize the condition of large-tonnage hoisting, the applicability is wider, the limit of the clearance at the bottom of a box girder is avoided, no matter the box girder is low-clearance or the common box girder, the method is feasible and economical when a support steel pipe pile foundation is pulled out, compared with the design of matching a vibration hammer with a crane, the method saves the lease and foundation treatment cost of large-scale hoisting machinery, greatly reduces the construction cost and avoids the loss of materials.
Description
Technical Field
The invention relates to the technical field of temporary hoisting points, in particular to a system and a method for installing a temporary hoisting point.
Background
In bridge engineering, the bearing capacity of a box girder support bearing steel pipe pile is generally large, and due to the reasons such as a pile end soil plug effect and pore water pressure, the steel pipe pile pulling-out can be completed only by adopting large-tonnage hoisting equipment and assisting a high-power vibratory hammer. The steel pipe pile foundation for box girder construction is pulled out by generally adopting the design of matching a crane with a vibration hammer, and in construction, the bottom of the box girder needs enough clearance to meet the hoisting construction requirement of an extending arm of the crane. For the low clearance box girder, in the dismantling process of the box girder bracket, large-scale hoisting equipment cannot be used due to the clearance problem, and the steel pipe pile foundation is difficult to construct after being pulled out.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a temporary hoisting point installation system, and the invention aims to provide a temporary hoisting point installation method, which has wider applicability, is not limited by the bottom clearance of a box girder, greatly reduces the construction cost and avoids the loss of materials.
One of the purposes of the invention is realized by adopting the following technical scheme:
the utility model provides a interim hoisting point installing the system, includes the case roof beam bottom plate, a actuating mechanism has been suspended to the top of case roof beam bottom plate, actuating mechanism's output is connected with the hoisting point through the hoisting component, the activity of hoisting component runs through case roof beam bottom plate, through the drive the hoisting component will the hoisting point top joint is in the bottom of case roof beam bottom plate, still be provided with on the case roof beam bottom plate and be used for fixing the locking mechanism of hoisting component.
Furthermore, the lifting assembly comprises a pull rope, a pull rod and a limiting base plate, a first preformed hole for the pull rope and the pull rod to pass through is formed in the box girder bottom plate, one end of the pull rope is connected with the output end of the driving mechanism, the other end of the pull rope is connected with one end of the pull rod, the other end of the pull rod is connected with the lifting point, the limiting base plate is sleeved on the rod body of the pull rod, the limiting base plate is used for abutting against the bottom of the box girder bottom plate, and the locking mechanism is used for fixing the pull rod on the box girder bottom plate.
Furthermore, the pull rod is provided with a polished rod section and a threaded section, the locking mechanism comprises a first support arranged on the box girder bottom plate, the first support is provided with a second reserved hole for the pull rod and the pull rod to pass through, a first nut is arranged on the first support, the polished rod section of the pull rod passes through the first nut and can be in threaded connection with the threaded section of the pull rod, and the pull rod is fixed on the box girder bottom plate through the cooperation of the first nut and the limiting base plate.
Furthermore, a cushion plate for supporting the first support is arranged on the box girder bottom plate, and a third preformed hole for the pull rope and the pull rod to pass through is formed in the cushion plate.
Further, the threaded section of the pull rod extends into the lifting point and is in threaded connection with a second nut for suspending the lifting point.
The second purpose of the invention is realized by adopting the following technical scheme:
a method of temporary suspension point installation, the method comprising:
a driving mechanism is suspended above the box girder bottom plate, and the output end of the driving mechanism is connected with a lifting assembly which can movably penetrate through the box girder bottom plate;
the lifting assembly is connected with the lifting point, and the driving mechanism is used for acting on the lifting assembly to jack the lifting point to the bottom of the box girder bottom plate;
when the lifting assembly props the lifting point at the bottom of the box girder bottom plate, the lifting assembly is fixed on the box girder bottom plate through the locking mechanism.
Furthermore, the lifting assembly comprises a pull rope, a pull rod and a limiting base plate;
a first preformed hole for the pull rope and the pull rod to pass through is formed in the box girder bottom plate, and one end of the pull rope is connected with the output end of the driving mechanism;
the other end of the pull rope penetrates through the first preformed hole to be connected with one end of the pull rod, and the other end of the pull rod is connected with the hoisting point;
the limit base plate is sleeved on the rod body of the pull rod, the driving mechanism lifts the pull rope to drive the pull rod to abut the limit base plate to the bottom of the box girder bottom plate, and the locking mechanism fixes the pull rod on the box girder bottom plate.
Furthermore, the pull rod is provided with a light rod section and a threaded section, and the locking mechanism comprises a first bracket arranged on a box girder bottom plate and a first nut arranged on the first bracket;
a second preformed hole for the pull rope and the pull rod to pass through is formed in the first support;
when the driving mechanism lifts the pull rope to drive the pull rod to jack and connect the limiting base plate to the bottom of the box girder bottom plate, the polished rod section of the pull rod sequentially penetrates through the second preformed hole and the first nut, then the first nut is screwed down, and the pull rod is fixed on the box girder bottom plate by matching with the limiting base plate.
Furthermore, a cushion plate for supporting the first support is arranged on the box girder bottom plate, and a third preformed hole for the pull rope and the pull rod to pass through is formed in the cushion plate.
Further, a threaded section of the tie rod extends into the suspension point and is threadedly connected with a second nut for suspending the suspension point.
Compared with the prior art, the invention has the beneficial effects that:
the temporary hoisting point is installed and matched with simple equipment such as a pulley block and the like to realize the condition of large-tonnage hoisting, the applicability is wider, the limit of the clearance at the bottom of a box girder is avoided, no matter the box girder is low-clearance or the common box girder, the method is feasible and economical when a support steel pipe pile foundation is pulled out, compared with the design of matching a vibration hammer with a crane, the method saves the lease and foundation treatment cost of large-scale hoisting machinery, greatly reduces the construction cost and avoids the loss of materials.
Drawings
FIG. 1 is a schematic view of an installation state of a temporary suspension point installation system and method of the present invention;
FIG. 2 is a schematic diagram of the final installation results of the temporary hoist point installation system and method of the present invention;
FIG. 3 is a schematic view of the structure of FIG. 2 from another perspective;
FIG. 4 is a first schematic view of a first partial configuration of the temporary hoist point installation system and method of the present invention;
fig. 5 is a partial structural schematic diagram of a temporary suspension point installation system and method of the present invention.
In the figure: 10. a box girder bottom plate; 20. hoisting points; 31. pulling a rope; 32. a pull rod; 33. a limiting base plate; 41. a first bracket; 42. a first nut; 50. protecting the backing plate; 60. a pad plate; 70. a second nut; 80. a hoisting ring; 90. shackle dismounting; 100. a pulley block; 111. a second bracket; 112. a winch.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
The temporary suspension point installation system shown in fig. 1-5 comprises a box girder bottom plate 10, a driving mechanism is suspended above the box girder bottom plate 10, the output end of the driving mechanism is connected with a suspension point 20 through a lifting assembly, the suspension point 20 is abutted to the bottom of the box girder bottom plate 10 through driving the lifting assembly, and a locking mechanism for fixing the lifting assembly is further arranged on the box girder bottom plate 10. The construction of pulling out to low headroom case roof beam steel-pipe pile is subject to the headroom not enough, can't use conventional design to pull out the steel-pipe pile, and the installation of this interim hoisting point of accessible, simple and easy equipment such as connecting pulley block can realize the condition of large-tonnage jack-up, has played the effect that replaces large-scale equipment of lifting by crane, greatly reduced construction cost.
As a preferred embodiment, the lifting assembly comprises a pulling rope 31, a pulling rod 32 and a limiting cushion plate 33, a first preformed hole for the pulling rope 31 and the pulling rod 32 to pass through is formed in the box girder bottom plate 33, one end of the pulling rope 31 is connected with the output end of the driving mechanism, the other end of the pulling rope 31 is connected with one end of the pulling rod 32, the other end of the pulling rod 32 is connected with the lifting point 20, the limiting cushion plate 33 is movably sleeved on the rod body of the pulling rod 32, the limiting cushion plate 33 is abutted to the bottom of the box girder bottom plate 10 through the lifting point 20, and the locking mechanism is used for fixing the pulling rod 32 on the box girder bottom plate 10;
further preferably, the pull rope 31 is a steel cable, and the diameter of the steel cable is not larger than that of the pull rod 32; the pull rod 32 is made of finish-rolled deformed steel bar, the pull rod 32 is provided with a light rod section and a threaded section, the top end of the pull rod is provided with a hanging ring 80, the outer diameter of the hanging ring 80 is smaller than the diameter of the pull rod 32, one end of the threaded section of the pull rod 32 extends into the lifting point 20 and is in threaded connection with a second nut 70 used for hanging the lifting point 20, and the second nut 70 is screwed and fixed by double nuts; the limiting base plate 33 is a steel base plate, and the lifting point 20 can be prevented from being damaged on the lower surface of the bottom of the box girder bottom plate 33 when being upwards installed and pushed tightly and rotated in the construction process through the limiting base plate 33, so that the appearance quality is influenced.
As a preferred embodiment, the locking mechanism comprises a first bracket 41 arranged on the box girder bottom plate 10, the first bracket 41 is provided with a second preformed hole for the pull rope 31 and the pull rod 32 to pass through, a first nut 42 for the polished rod section of the pull rod 32 to pass through and be capable of being in threaded connection with the threaded section of the pull rod 32 is arranged on the first bracket 41, and the pull rod 32 is fixed on the box girder bottom plate 10 through the first nut 42 in cooperation with the limit cushion plate 33;
it is further preferred that the first bracket 41 is used as a load-bearing beam by processing two I25a I-beams into double-split I-beams, and a second preformed hole is cut at the joint of the upper and lower flange plates, and the diameter of the second preformed hole is slightly larger than the diameter of the pull rope 31 and the pull rod 32, so that the pull rope 31 and the pull rod 32 can pass through the second preformed hole.
In addition to the above structure, the bed plate 60 for supporting the first bracket 41 is provided on the box girder bottom plate 10, and the bed plate 60 has a third prepared hole through which the pulling rope 31 and the pulling rod 32 pass. Because the concrete surface at the top of the box girder bottom plate 10 is uneven, the cushion plate 60 can solve the problem of stress concentration caused by uneven contact surface, and the cushion plate 60 preferably adopts a polytetrafluoroethylene plate, so that the compression resistance is good.
On the basis of the above structure, the protective pad 50 is disposed on the upper surface of the first bracket 41, the first nut 42 is disposed on the protective pad 50, the protective pad 50 has a fourth preformed hole for the pulling rope 31 and the pulling rod 32 to pass through, the protective pad 50 is preferably a steel pad, and the load of the pulling rod 32 and the first nut 42 is dispersed to the upper surface of the first bracket 41 through the protective pad 50, so as to avoid the first nut 42 from generating concentrated stress near the opening of the first bracket 41 in the construction process.
On the basis of the structure, the threaded section of the pull rod 32 extends into the lifting point 20 and is in threaded connection with a second nut 70 for suspending the lifting point 20, and the second nut 70 is screwed and fixed by double nuts.
On the basis of the structure, one end of the pull rod 32 is provided with a hanging ring 80 used for being connected with the pull rope 31, and the outer diameter of the hanging ring 80 is smaller than the diameter of the pull rod 32.
On the basis of the structure, the lifting point 20 is fixedly connected with a pulley block 100 through a shackle 90, so that the condition of large-tonnage lifting can be realized.
On the basis of the structure, the driving mechanism comprises a second support 111 arranged on the box girder bottom plate 10, a winch 112 with the lifting capacity of 1t is arranged on the second support 111, and the second support 111 is made of channel steel and serves as a construction platform of the winch 112.
A method of installing a temporary suspension point as shown in fig. 1-5, the method comprising:
s1, suspending a driving mechanism above the box girder bottom plate 10, and connecting a lifting assembly capable of movably penetrating through the box girder bottom plate 10 at the output end of the driving mechanism;
s3, connecting the lifting assembly with the lifting point 20, and using a driving mechanism to act on the lifting assembly to butt the lifting point 20 against the bottom of the box girder bottom plate 10;
and S3, when the lifting assembly abuts the lifting point 20 on the bottom of the box girder bottom plate 10, fixing the lifting assembly on the box girder bottom plate 10 through a locking mechanism.
As a preferred embodiment, in S1, the lifting assembly includes a pull rope 31, a pull rod 32 and a limit pad 33, the driving mechanism includes a second bracket 111 disposed on the box girder bottom plate 10, a hoist 112 with a lifting capacity of 1t is disposed on the second bracket 111, and the second bracket 111 is made of channel steel and serves as a construction platform of the hoist 112;
further preferably, the pull rope 31 is a steel cable, and the diameter of the steel cable is not larger than that of the pull rod 32; the pull rod 32 is made of finish-rolled deformed steel bar, the pull rod 32 is provided with a polished rod section and a threaded section, the top end of the polished rod section is provided with a hanging ring 80, and the outer diameter of the hanging ring 80 is smaller than the diameter of the pull rod 32; the limiting base plate 33 is a steel base plate, and the lifting point 20 can be prevented from being damaged on the lower surface of the bottom of the box girder bottom plate 33 when being upwards installed and pushed tightly and rotated in the construction process through the limiting base plate 33, so that the appearance quality is influenced.
The S1 specifically includes the following:
s11, before the box girder is installed or poured, a first preformed hole for the pull rope 31 and the pull rod 32 to pass through is formed in the box girder bottom plate 10 through measurement lofting, and one end of the pull rope 31 is connected with the winch 112;
s12, the other end of the pull rope 31 passes through the first preformed hole to be connected with the hanging ring 80 at the top end of the pull rod 32, the bottom end of the pull rod 32 extends into the hanging point 20 and is in threaded connection with a second nut 70 used for hanging the hanging point 20, and the second nut 70 is screwed and fixed by double nuts;
s13, movably sleeving the limit base plate 33 on the rod body of the pull rod 32, lifting the pull rod 32 by the winch 112 to enable the pull rod 32 to be connected with the bottom of the box girder bottom plate 10 in a propping mode through the lifting point 20 by the aid of the pull rope 31, and fixing the pull rod 32 on the box girder bottom plate 10 by the aid of the locking mechanism.
As a preferred embodiment, in S3, the locking mechanism includes a first bracket 41 provided on the box girder bottom plate 10, and a first nut 42 provided on the first bracket 41;
it is further preferable that the first bracket 41 is used as a bearing beam by processing two I-beams I25a into a double-split I-beam, and a second preformed hole is cut at the joint of the upper flange plate and the lower flange plate, and the diameter of the second preformed hole is slightly larger than the diameter of the pull rope 31 and the pull rod 32, so that the pull rope 31 and the pull rod 32 can conveniently pass through the second preformed hole.
The S3 specifically includes the following steps:
s31, forming a second preformed hole for the pull rope 31 and the pull rod 32 to pass through on the first bracket 41;
s32, when the hoist 112 lifts the pull rope 31 to drive the pull rod 32 to abut the stop washer 33 against the bottom of the box girder bottom plate 10, the polish rod segment of the pull rod 32 sequentially passes through the second preformed hole and the first nut 42, and then the first nut 42 is screwed down to cooperate with the stop washer 33 to fix the pull rod 32 on the box girder bottom plate 10.
In addition to the above method, a bed plate 60 for supporting the first bracket 41 is provided on the box girder bottom plate 10, and a third prepared hole through which the pulling rope 31 and the pulling rod 32 pass is provided on the bed plate 60. Because the concrete surface of the top of the box girder bottom plate 10 is uneven, the cushion plate 60 can solve the problem of stress concentration caused by uneven contact surface, and the cushion plate 60 preferably adopts a polytetrafluoroethylene plate, so that the compression resistance is good.
On the basis of the above method, the protective pad 50 is disposed on the upper surface of the first bracket 41, the first nut 42 is disposed on the protective pad 50, the protective pad 50 has a fourth preformed hole for the pulling rope 31 and the pulling rod 32 to pass through, the protective pad 50 is preferably a steel pad, and the load of the pulling rod 32 and the first nut 42 is dispersed to the upper surface of the first bracket 41 through the protective pad 50, so that the first nut 42 is prevented from generating concentrated stress near the opening of the first bracket 41 during construction.
On the basis of the method, the lifting point 20 is fixedly connected with a pulley block 100 through a shackle 90, and the condition of large-tonnage lifting can be realized.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (10)
1. A temporary suspension point installation system, characterized in that: including the case roof beam bottom plate, a actuating mechanism has been suspended to the top of case roof beam bottom plate, actuating mechanism's output is connected with the hoisting point through the hoisting component, the hoisting component activity runs through the case roof beam bottom plate, through the drive the hoisting component will the hoisting point top joint is in the bottom of case roof beam bottom plate, still be provided with on the case roof beam bottom plate and be used for fixing the locking mechanism of hoisting component.
2. A temporary suspension point mounting system as claimed in claim 1 wherein: the lifting assembly comprises a pull rope, a pull rod and a limiting base plate, a first preformed hole for the pull rope and the pull rod to penetrate through is formed in the box girder bottom plate, one end of the pull rope is connected with the output end of the driving mechanism, the other end of the pull rod is connected with one end of the pull rod, the other end of the pull rod is connected with the hoisting point, the limiting base plate is sleeved on the rod body of the pull rod, the limiting base plate is used for abutting against the bottom of the box girder bottom plate, and the locking mechanism is used for fixing the pull rod on the box girder bottom plate.
3. A temporary suspension point installation system as claimed in claim 2 wherein: the pull rod is provided with a polished rod section and a threaded section, the locking mechanism comprises a first support arranged on the box girder bottom plate, the first support is provided with a second preformed hole for the pull rod and the pull rod to pass through, the first support is provided with a first nut for the polished rod section of the pull rod to pass through and be in threaded connection with the threaded section of the pull rod, and the pull rod is fixed on the box girder bottom plate through the cooperation of the first nut and the limiting base plate.
4. A temporary suspension point mounting system as claimed in claim 3 wherein: the box girder bottom plate is provided with a cushion plate for supporting the first support, and the cushion plate is provided with a third preformed hole for the pull rope and the pull rod to pass through.
5. A temporary suspension point mounting system as claimed in any one of claims 2 to 4, wherein: the thread section of the pull rod extends into the lifting point and is in threaded connection with a second nut used for suspending the lifting point.
6. A temporary hoisting point installation method is characterized in that: the method comprises the following steps:
a driving mechanism is suspended above the box girder bottom plate, and the output end of the driving mechanism is connected with a lifting assembly which can movably penetrate through the box girder bottom plate;
the lifting assembly is connected with the lifting point, and the driving mechanism is used for acting on the lifting assembly to jack the lifting point to the bottom of the box girder bottom plate;
when the lifting assembly props the lifting point at the bottom of the box girder bottom plate, the lifting assembly is fixed on the box girder bottom plate through the locking mechanism.
7. A temporary suspension point installation method as claimed in claim 6, wherein: the lifting assembly comprises a pull rope, a pull rod and a limiting base plate;
a first preformed hole for the pull rope and the pull rod to pass through is formed in the box girder bottom plate, and one end of the pull rope is connected with the output end of the driving mechanism;
the other end of the pull rope passes through the first preformed hole to be connected with one end of the pull rod, and the other end of the pull rod is connected with the hoisting point;
the limit base plate is sleeved on the rod body of the pull rod, the driving mechanism lifts the pull rope to drive the pull rod to abut the limit base plate to the bottom of the box girder bottom plate, and the locking mechanism fixes the pull rod on the box girder bottom plate.
8. A temporary suspension point installation method as claimed in claim 7, wherein: the pull rod is provided with a light rod section and a threaded section, and the locking mechanism comprises a first support arranged on a box girder bottom plate and a first nut arranged on the first support;
a second preformed hole for the pull rope and the pull rod to pass through is formed in the first support;
when the driving mechanism lifts the pull rope to drive the pull rod to jack and connect the limiting base plate to the bottom of the box girder bottom plate, the polished rod section of the pull rod sequentially penetrates through the second preformed hole and the first nut, then the first nut is screwed down, and the pull rod is fixed on the box girder bottom plate by matching with the limiting base plate.
9. A temporary suspension point installation method as claimed in claim 8, wherein: and a cushion plate for supporting the first support is arranged on the box girder bottom plate, and a third preformed hole for the pull rope and the pull rod to pass through is formed in the cushion plate.
10. A temporary suspension point installation method as claimed in any one of claims 7 to 9, wherein: the threaded section of the pull rod extends into the lifting point and is in threaded connection with a second nut for suspending the lifting point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210500760.3A CN114772455A (en) | 2022-05-09 | 2022-05-09 | Temporary hoisting point installation system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210500760.3A CN114772455A (en) | 2022-05-09 | 2022-05-09 | Temporary hoisting point installation system and method |
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| Publication Number | Publication Date |
|---|---|
| CN114772455A true CN114772455A (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210500760.3A Pending CN114772455A (en) | 2022-05-09 | 2022-05-09 | Temporary hoisting point installation system and method |
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| CN (1) | CN114772455A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115321335A (en) * | 2022-08-22 | 2022-11-11 | 中广核工程有限公司 | Hoisting point device and using method thereof |
-
2022
- 2022-05-09 CN CN202210500760.3A patent/CN114772455A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115321335A (en) * | 2022-08-22 | 2022-11-11 | 中广核工程有限公司 | Hoisting point device and using method thereof |
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