CN109650226B - Anti-falling support beam column system of hydraulic jacking steel platform and application method of anti-falling support beam column system - Google Patents
Anti-falling support beam column system of hydraulic jacking steel platform and application method of anti-falling support beam column system Download PDFInfo
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- CN109650226B CN109650226B CN201910106965.1A CN201910106965A CN109650226B CN 109650226 B CN109650226 B CN 109650226B CN 201910106965 A CN201910106965 A CN 201910106965A CN 109650226 B CN109650226 B CN 109650226B
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- box girder
- telescopic bracket
- upper box
- reversing plate
- lower box
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 41
- 239000010959 steel Substances 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 12
- 210000001015 abdomen Anatomy 0.000 claims description 12
- 239000010720 hydraulic oil Substances 0.000 claims description 10
- 238000003466 welding Methods 0.000 claims description 5
- 230000000630 rising effect Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 230000003187 abdominal effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/04—Kinds or types of lifts in, or associated with, buildings or other structures actuated pneumatically or hydraulically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/0005—Constructional features of hoistways
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/16—Braking or catch devices operating between cars, cages, or skips and fixed guide elements or surfaces in hoistway or well
- B66B5/26—Positively-acting devices, e.g. latches, knives
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Civil Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a falling-preventing supporting beam column system of a hydraulic jacking steel platform and a using method thereof, wherein the falling-preventing supporting beam column system comprises a lower box beam and an upper box beam positioned right above the lower box beam, a supporting column is vertically fixed at the top of the upper box beam, a steel platform supporting block is arranged at the top of the supporting column, a main hydraulic cylinder is also fixed on the upper box beam, an outer frame column is fixedly connected to the bottom of the upper box beam, an inner frame column is sleeved in the inner frame column, the bottom end of the inner frame column is fixedly connected to the top of the lower box beam, the top end of the inner frame column is fixedly connected with a piston rod of the main hydraulic cylinder, a rack is vertically fixed at the outer side of the inner frame column, and a bidirectional non-return lock matched with the rack is arranged at the inner side of the outer frame column. If the hydraulic system fails in the jacking process, the lock tongue of the bidirectional non-return lock is inserted into the rack when the upper box girder or the lower box Liang Zhuila is arranged, so that the upper box girder or the lower box girder can be timely prevented from falling, and safety accidents are prevented. The invention has compact integral structure, saves space and is suitable for super high-rise core tube structure construction with narrow space.
Description
Technical Field
The invention belongs to the technical field of building engineering construction, and particularly relates to a falling-preventing supporting beam column system of a hydraulic jacking steel platform and a use method thereof.
Background
In recent years, with the rising of domestic super high-rise buildings, the application of hydraulic jacking steel platforms is more and more widespread, and when the hydraulic jacking steel platforms are applied to super high-rise building construction, the hydraulic jacking steel platforms are generally supported on a concrete shear wall body which is poured through an upper box girder and a lower box girder alternately, and the lifting of the steel platforms is realized by means of the jacking and shrinkage of hydraulic cylinders. However, when the hydraulic cylinder works, once the hydraulic system fails, the hydraulic cylinder loses pressure, under the action of gravity, an upper box girder or a lower box girder can be possibly caused to fall, so that a safety accident is caused, and the accident is destructive, and the consequence is not considered.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provides a falling-preventing support beam column system of a hydraulic jacking steel platform, which is simple in structure, convenient to operate, safe and reliable.
The invention further aims to provide a using method of the anti-falling support beam column system of the hydraulic jacking steel platform.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the utility model provides a hydraulic pressure jacking steel platform anti-falling support beam column system, includes lower case roof beam and is located the last case roof beam directly over the lower case roof beam, the vertical support column that is fixed with in top of going up the case roof beam, the top of support column is equipped with steel platform supporting shoe, go up and still be fixed with main hydraulic cylinder on the case roof beam, the bottom fixedly connected with frame post of going up the case roof beam, the inside cover of frame post is equipped with the top of inside casing post and inside casing post, the top and the piston rod fixed connection of main hydraulic cylinder of inside casing post, the inside rack that is fixed with in the inside casing post outside is vertical, the outside frame post inboard be equipped with rack matched with two-way non-return lock.
Further, the bidirectional non-return lock comprises a lock body fixed on the inner side of the outer frame column, a reversing plate is arranged in the lock body and can slide along the lock body, a reversing plate fixing device is arranged between the lock body and the reversing plate, pushing springs are respectively fixed at two ends of the reversing plate, and a lock tongue is hinged to the lock body through a reversing rotating shaft, and the middle part of the lock tongue can rotate along the reversing rotating shaft.
Further, the reversing plate fixing device comprises a lock body connecting hole fixed on the side part of the lock body and a reversing plate connecting hole fixed on the side part of the reversing plate, and the reversing plate connecting hole is connected with the lock body connecting hole through a connecting fixing pin.
Further, the upper box girder is a steel plate box girder, the upper box girder comprises an upper abdomen box and upper supporting side boxes fixedly connected to two sides of the upper abdomen box, upper box girder telescopic brackets are arranged in the upper supporting side boxes, and upper box girder telescopic bracket hydraulic cylinders are arranged on the upper box girder telescopic brackets.
Further, the lower box girder is a steel plate box girder, the lower box girder comprises a lower abdomen box and lower supporting side boxes fixedly connected to two sides of the lower abdomen box, lower box girder telescopic brackets are arranged in the lower supporting side boxes, and lower box girder telescopic bracket hydraulic cylinders are arranged on the lower box girder telescopic brackets.
Further, the support columns, the inner frame columns and the outer frame columns are lattice columns formed by welding profile steel.
Further, the lock body comprises a rectangular bottom plate and side plates respectively fixed on two sides of the long side of the rectangular bottom plate, a reversing plate sliding groove is formed in the inner side of each side plate, two long sides of each reversing plate are clamped in the corresponding reversing plate sliding groove, and a reversing rotating shaft is arranged at the middle position of the upper portion of each side plate.
Further, the teeth on the rack are rectangular straight teeth.
The application method of the anti-falling support beam column system of the hydraulic jacking steel platform comprises the following steps:
A. when the lock starts to lift, the reversing plate is pushed downwards along the reversing plate sliding groove on the lock body, so that the pushing spring at the upper end of the reversing plate props against the upper part of the lock tongue, the lower end of the lock tongue is contacted with the rack, and the connecting fixing pin is inserted into the reversing plate connecting hole and the lock body connecting hole to fix the reversing plate and the lock body;
B. operating the main hydraulic cylinder to extend a piston rod of the main hydraulic cylinder, enabling the upper box girder and the telescopic bracket of the upper box girder to be lifted by 50mm, enabling the telescopic bracket of the upper box girder to be separated from a supporting surface, and enabling all loads to be completely borne by the telescopic bracket of the lower box girder and the telescopic bracket of the lower box girder, wherein the telescopic bracket hydraulic cylinder of the upper box girder is operated to retract the telescopic bracket of the upper box girder;
C. operating the main hydraulic cylinder to enable a piston rod of the main hydraulic cylinder to extend continuously, enabling the upper box girder to support the supporting column to rise slowly, and operating the main hydraulic cylinder to enable the upper box girder to stop jacking when the upper box girder and the telescopic bracket of the upper box girder reach the previous elevation;
D. operating the hydraulic cylinder of the telescopic bracket of the upper box girder to enable the two ends of the telescopic bracket of the upper box girder to extend into the reserved supporting hole of the previous elevation after the telescopic bracket of the upper box girder extends out;
E. the connecting fixing pin is taken down, the reversing plate is pushed upwards along the reversing plate sliding groove on the lock body, so that the pushing spring at the lower end of the reversing plate pushes the lock tongue to rotate around the reversing rotating shaft, the upper end of the lock tongue is contacted with the rack, the pushing spring at the lower end of the reversing plate props against the lower part of the lock tongue, the upper end of the lock tongue is positioned in the tooth slot of the rack, and the connecting fixing pin is inserted into the reversing plate connecting hole and the lock body connecting hole to fix the reversing plate and the lock body;
F. operating the main hydraulic cylinder to enable a piston rod of the main hydraulic cylinder to slowly shrink, fully stressing the upper box girder telescopic bracket, continuously shrinking the piston rod of the main hydraulic cylinder to enable the lower box girder and the lower box girder telescopic bracket to be separated from a supporting surface, and fully bearing the whole load by the upper box girder and the upper box girder telescopic bracket, and operating the lower box girder telescopic bracket hydraulic cylinder to retract the lower box girder telescopic bracket at the moment;
G. operating the main hydraulic oil cylinder to enable a piston rod of the main hydraulic oil cylinder to continuously shrink, lifting the lower box girder and the telescopic bracket of the lower box girder to slowly rise until the upper elevation is reached by the lower box girder and the telescopic bracket of the lower box girder, and operating the main hydraulic oil cylinder to enable the lower box girder to stop rising;
H. the hydraulic cylinder of the telescopic bracket of the lower box girder is operated, so that the two ends of the telescopic bracket of the lower box girder extend into the reserved supporting holes of the previous elevation after the telescopic bracket of the lower box girder extends, the main hydraulic cylinder is operated, so that the piston rod of the main hydraulic cylinder slowly extends, the telescopic bracket of the lower box girder is completely realized, and the jacking process of a standard layer is finished.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention relates to a hydraulic jacking steel platform anti-falling support beam column system which mainly comprises an upper box beam, a lower box beam, a support column fixed at the top of the upper box beam, a steel platform support block fixed at the top of the support column, a main hydraulic cylinder fixed on the upper box beam, an outer frame column fixedly connected to the bottom of the upper box beam and an inner frame column fixedly connected to the top of the lower box beam, wherein the inner frame column is sleeved in the outer frame column, the top end of the inner frame column is fixedly connected with a piston rod of the main hydraulic cylinder, and in addition, a rack and a bidirectional non-return lock which are matched are also arranged between the inner frame column and the outer frame column, if the hydraulic system fails in the jacking process, the hydraulic cylinder loses pressure, and when the upper box beam or the lower box Liang Zhuila is in a state, the lock tongue of the bidirectional non-return lock is inserted into the rack, so that the upper box beam or the lower box beam can be timely stopped from falling, and safety accidents are prevented. The invention has compact integral structure, saves space and is suitable for super high-rise core tube structure construction with narrow space. In addition, the invention has simple and convenient operation, safety and reliability, high safety coefficient and strong reliability in the use process.
2. The bidirectional non-return lock comprises a lock body, a reversing plate fixing device, a pushing spring, a lock tongue and a reversing rotating shaft, wherein the lock tongue can rotate around the reversing rotating shaft, the pushing spring is in contact with the lock tongue and pushes one end of the lock tongue to be matched with a rack in contact by adjusting the position of the reversing plate on the lock body, the direction of the lock tongue can be adjusted at any time according to the requirement, the operation is convenient, the reliability is high when the lock tongue is matched with the rack, and the safety of a hydraulic jacking steel platform in the working process can be effectively ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of the structure of the present invention in a raised state;
FIG. 3 is a schematic view of the upper end of the tongue of the bi-directional check lock of the present invention mated with the rack;
FIG. 4 is a schematic view of the lower end of the tongue of the bi-directional check lock of the present invention mated with the rack;
fig. 5-13 are usage charts of the present invention.
The reference numerals of the invention have the following meanings: 1. a support column; 2. a main hydraulic cylinder; 3. a box girder; 301. an upper abdominal box; 302. an upper support side case; 4. the upper box girder is provided with telescopic brackets; 5. an inner frame column; 6. a rack; 7. an outer frame column; 8. a two-way non-return lock; 801. a pushing spring; 802. a reversing plate; 803. a bolt; 804. a lock body; 805. a reversing rotating shaft; 806. a lock body connecting hole; 807. a reversing plate connecting hole; 808. connecting a fixing pin; 809. a side plate; 9. a lower box girder; 901. a lower abdominal box; 902. a lower support side case; 10. the lower box girder is provided with telescopic brackets; 11. and a steel platform supporting block.
Detailed Description
The invention is further described below with reference to the drawings and the detailed description.
As shown in fig. 1 to 4, a falling-preventing supporting beam column system for a hydraulic jacking steel platform comprises a lower box beam 9 and an upper box beam 3 positioned right above the lower box beam 9, wherein the upper box beam 3 is a steel plate box beam, the upper box beam 3 comprises an upper abdomen box 301 and upper supporting side boxes 302 fixedly connected with two sides of the upper abdomen box 301, upper box beam telescopic bracket 4 is arranged in the upper supporting side boxes 302, upper box beam telescopic bracket hydraulic cylinders are arranged on the upper box beam telescopic bracket 4, the upper box beam telescopic bracket hydraulic cylinders control the extension and contraction of the upper box beam telescopic bracket 4, the upper box beam 3 is used for bearing the load of the steel platform and is transmitted to a shearing wall which is already constructed through the upper box beam telescopic bracket 4, the lower box beam 9 is a steel plate box beam, the lower box beam 9 comprises a lower abdomen box 901 and lower supporting side boxes 902 fixedly connected with two sides of the lower abdomen box 901, the lower supporting side box 902 is internally provided with a lower box girder telescopic bracket 10, the lower box girder telescopic bracket 10 is provided with a lower box girder telescopic bracket hydraulic cylinder, the lower box girder telescopic bracket hydraulic cylinder controls the extension and contraction of the box girder telescopic bracket 10, the lower box girder 9 is used for bearing the load of a steel platform and is transmitted to a shearing wall which is completed by construction through the lower box girder telescopic bracket 10, the top of the upper box girder 3 is vertically fixed with a supporting column 1, the supporting column 1 is a lattice column formed by welding profile steel and can be composed of standard sections with a certain length, the top of the supporting column 1 is provided with a steel platform supporting block 11, the steel platform supporting block 11 is connected with the steel platform when in use, the upper box girder 3 is also fixed with a main hydraulic cylinder 2, the main hydraulic cylinder 2 is a large-tonnage and large-stroke hydraulic cylinder, mainly comprises a cylinder barrel and a piston rod, in order to save space, the main hydraulic cylinder 2 is reversely arranged inside the support column 1, a flange is arranged on the outer side of the cylinder barrel and is connected with the upper box girder 3, an outer frame column 7 is fixedly connected to the bottom of the upper box girder 3, the outer frame column 7 is a lattice column formed by welding profile steel, an inner frame column 5 is sleeved inside the outer frame column 7 and is fixedly connected to the top of the lower box girder 9, the inner frame column 5 is a lattice column formed by welding profile steel, the top end of the inner frame column 5 is fixedly connected with a piston rod of the main hydraulic cylinder 2, a rack 6 is vertically fixed on the outer side of the inner frame column 5, teeth on the rack 6 are rectangular straight teeth, a bidirectional check lock 8 matched with the rack 6 is arranged on the inner side of the outer frame column 7, the bidirectional check lock 8 is matched with the bidirectional check lock 8 to achieve the purpose of unidirectional motion, the bidirectional check lock 8 comprises a rectangular base plate and side plates 809 fixed on the inner sides of the outer frame column, the inner side plates 809 are respectively provided with reversing plate sliding grooves, reversing plate 802 are clamped on the sliding grooves of the inner sides of the rectangular base plate, two sides 802 are fixedly clamped with reversing plate 802 (two long side plates 802 are clamped on the sliding grooves 802) respectively, two sides of the reversing plate 802 are fixedly connected with reversing plate 803 along the reversing plate 803, and the side portions of the reversing plate 803 are fixedly connected with a reversing plate 805 through a reversing device is fixedly arranged at the side plate 805, and a reversing device is fixedly connected with a reversing device is fixedly arranged on the side plate 805, and a reversing device is fixedly arranged on a side plate 805 through a side plate 805.
The anti-falling support beam column system of the hydraulic jacking steel platform comprises the following steps when in use:
A. when the lifting starts, the reversing plate 802 is pushed downwards along the reversing plate sliding groove on the lock body 804, so that the pushing spring 801 at the upper end of the reversing plate 802 props against the upper part of the lock tongue 803, the lower end of the lock tongue 803 contacts with the rack 6, and the reversing plate 802 is fixed with the lock body 804 by inserting the connecting fixing pin 808 into the reversing plate connecting hole 807 and the lock body connecting hole 806, and the state is shown in fig. 5;
B. operating the main hydraulic cylinder 2 to extend a piston rod of the main hydraulic cylinder 2, lifting the upper box girder 3 and the upper box girder telescopic bracket 4 by 50mm, separating the upper box girder telescopic bracket 4 from a supporting surface, and fully bearing the whole load by the lower box girder 9 and the lower box girder telescopic bracket 10, wherein the upper box girder telescopic bracket hydraulic cylinder is operated to retract the upper box girder telescopic bracket 4, and the state is shown in fig. 6;
C. the main hydraulic cylinder 2 is operated to enable a piston rod of the main hydraulic cylinder 2 to extend continuously, the upper box girder 3 supports the supporting column 1 to ascend slowly, the state is shown in fig. 7 at the moment, until the upper box girder 3 and the telescopic bracket 4 of the upper box girder reach the previous elevation, the main hydraulic cylinder 2 is operated to enable the upper box girder 3 to stop jacking, and the state is shown in fig. 8 at the moment;
D. operating the upper box girder telescopic bracket hydraulic cylinder to enable the two ends of the upper box girder telescopic bracket 4 to extend into the support holes reserved at the previous elevation after the upper box girder telescopic bracket 4 extends out, wherein the state is shown in figure 9;
E. the connecting fixing pin 808 is removed, the reversing plate 802 is pushed upwards along the reversing plate sliding groove on the lock body 804, so that the pushing spring 801 at the lower end of the reversing plate 802 pushes the lock tongue 803 to rotate around the reversing rotating shaft 805, the upper end of the lock tongue 803 is contacted with the rack 6, the pushing spring 801 at the lower end of the reversing plate 802 props against the lower part of the lock tongue 803, the upper end of the lock tongue 803 is positioned in the tooth groove of the rack 6, and the connecting fixing pin 808 is inserted into the reversing plate connecting hole 807 and the lock body connecting hole 806 to fix the reversing plate 802 and the lock body 804;
F. operating the main hydraulic cylinder 2 to enable a piston rod of the main hydraulic cylinder 2 to slowly shrink, fully stressing the upper box girder telescopic bracket 4, continuously shrinking the piston rod of the main hydraulic cylinder 2 to enable the lower box girder 9 and the lower box girder telescopic bracket 10 to be separated from a supporting surface, and fully bearing the whole load by the upper box girder 3 and the upper box girder telescopic bracket 4, at the moment, operating the lower box girder telescopic bracket hydraulic cylinder to retract the lower box girder telescopic bracket 10, wherein the state is shown in fig. 10;
G. operating the main hydraulic cylinder 2 to enable a piston rod of the main hydraulic cylinder to continuously shrink, lifting the lower box girder 9 and the telescopic bracket 10 of the lower box girder by the piston rod of the main hydraulic cylinder, wherein the state is shown in fig. 11 at the moment, and operating the main hydraulic cylinder 2 to enable the lower box girder 9 to stop rising when the upper elevation of the lower box girder 9 and the telescopic bracket 10 of the lower box girder is reached, and the state is shown in fig. 12 at the moment;
H. the telescopic bracket hydraulic cylinder of the lower box girder is operated to enable the two ends of the telescopic bracket 10 of the lower box girder to extend into the reserved supporting holes of the previous elevation after the telescopic bracket 10 of the lower box girder extends, the main hydraulic cylinder 2 is operated to enable the piston rod of the main hydraulic cylinder 2 to slowly extend, the telescopic bracket 10 of the lower box girder is enabled to be completely implemented, at the moment, the state is as shown in fig. 13, and the lifting process of a standard layer is completed.
Claims (4)
1. The utility model provides a hydraulic pressure jacking steel platform support beam column system that falls, includes lower case roof beam (9) and is located last case roof beam (3) directly over lower case roof beam (9), its characterized in that: the lower box girder (9) is a steel plate box girder, the lower box girder (9) comprises a lower abdomen box (901) and lower support side boxes (902) fixedly connected to two sides of the lower abdomen box (901), lower support side boxes (902) are internally provided with lower box girder telescopic bracket (10), lower box girder telescopic bracket (10) are provided with lower box girder telescopic bracket hydraulic cylinders, the upper box girder (3) is a steel plate box girder, the upper box girder (3) comprises an upper abdomen box (301) and upper support side boxes (302) fixedly connected to two sides of the upper abdomen box (301), upper support side boxes (302) are internally provided with upper box girder telescopic brackets (4), the tops of the upper box girders (3) are vertically fixed with support columns (1), the tops of the support columns (1) are provided with steel platform support blocks (11), the upper box girder (3) are also fixedly provided with main beams (2), the bottoms of the main beams (3) are fixedly connected with inner frames (5) of the inner frames (5), the bottoms of the main beams (5) are fixedly connected with the inner frames (5), the utility model discloses a reversing device, which is characterized in that a rack (6) is vertically fixed on the outer side of an inner frame column (5), a bidirectional non-return lock (8) matched with the rack (6) is arranged on the inner side of an outer frame column (7), the bidirectional non-return lock (8) comprises a lock body (804) fixed on the inner side of the outer frame column, a reversing plate (802) is arranged in the lock body (804) and can slide along the lock body (804), a reversing plate fixing device is arranged between the lock body (804) and the reversing plate (802), the reversing plate fixing device comprises a lock body connecting hole (806) fixed on the side part of the lock body (804) and a reversing plate connecting hole (807) fixed on the side part of the reversing plate (802), the reversing plate connecting hole (807) is connected with the lock body connecting hole (806) through a connecting fixing pin (808), pushing springs (801) are respectively fixed at two ends of the reversing plate (802), the middle part of the lock body (804) which can slide along the reversing shaft (805) through a reversing shaft (803), the reversing plate fixing device is arranged on the reversing shaft (803), the reversing plate fixing device comprises a reversing plate (809) and two side plates (809) which are respectively fixed on two side plates (809) and a reversing groove (809) and a side plate (809) which are respectively arranged on the two side plates (809), the upper middle position of the side plate (809) is provided with a reversing rotating shaft (805).
2. The hydraulic jacking steel platform fall arrest support beam column system of claim 1, wherein: the support columns (1), the inner frame columns (5) and the outer frame columns (7) are lattice columns formed by welding profile steel.
3. The hydraulic jacking steel platform fall arrest support beam column system of claim 1, wherein: the teeth on the rack (6) are rectangular straight teeth.
4. A method of using the hydraulic jacking steel platform fall protection support beam column system of claim 1, comprising the steps of:
A. when the lock starts to lift, the reversing plate (802) is pushed downwards along the reversing plate sliding groove on the lock body (804), so that a pushing spring (801) at the upper end of the reversing plate (802) props against the upper part of a lock tongue (803), the lower end of the lock tongue (803) is contacted with a rack (6), and a connecting fixing pin (808) is inserted into a reversing plate connecting hole (807) and a lock body connecting hole (806) to fix the reversing plate (802) and the lock body (804);
B. operating the main hydraulic cylinder (2) to enable a piston rod of the main hydraulic cylinder (2) to extend, enabling the upper box girder (3) and the upper box girder telescopic bracket (4) to lift up by 50mm, enabling the upper box girder telescopic bracket (4) to be separated from a supporting surface, enabling all loads to be borne by the lower box girder (9) and the lower box girder telescopic bracket (10) completely, and operating the upper box girder telescopic bracket hydraulic cylinder to retract the upper box girder telescopic bracket (4);
C. operating the main hydraulic oil cylinder (2) to enable a piston rod of the main hydraulic oil cylinder (2) to extend continuously, and enabling the upper box girder (3) to support the supporting column (1) to ascend until the upper box girder (3) and the telescopic bracket (4) of the upper box girder reach the previous elevation, and operating the main hydraulic oil cylinder (2) to enable the upper box girder (3) to stop jacking;
D. operating the upper box girder telescopic bracket hydraulic cylinder to enable two ends of the upper box girder telescopic bracket (4) to extend into a supporting hole reserved at the previous elevation after the upper box girder telescopic bracket (4) extends out;
E. the connecting fixing pin (808) is removed, the reversing plate (802) is pushed upwards along a reversing plate sliding groove on the lock body (804), so that a pushing spring (801) at the lower end of the reversing plate (802) pushes a lock tongue (803) to rotate around a reversing rotating shaft (805), the upper end of the lock tongue (803) is contacted with the rack (6), the pushing spring (801) at the lower end of the reversing plate (802) props against the lower part of the lock tongue (803), the upper end of the lock tongue (803) is positioned in a tooth groove of the rack (6), and the connecting fixing pin (808) is inserted into a reversing plate connecting hole (807) and the lock body connecting hole (806) to fix the reversing plate (802) and the lock body (804);
F. operating the main hydraulic cylinder (2) to enable a piston rod of the main hydraulic cylinder (2) to shrink, enabling the upper box girder telescopic bracket (4) to be fully stressed, continuously shrinking the piston rod of the main hydraulic cylinder (2) to enable the lower box girder (9) and the lower box girder telescopic bracket (10) to be separated from a supporting surface, enabling all loads to be fully borne by the upper box girder (3) and the upper box girder telescopic bracket (4), and operating the lower box girder telescopic bracket hydraulic cylinder to retract the lower box girder telescopic bracket (10);
G. operating the main hydraulic oil cylinder (2) to enable a piston rod of the main hydraulic oil cylinder to continuously shrink, and lifting the lower box girder (9) and the telescopic bracket (10) of the lower box girder by the piston rod of the main hydraulic oil cylinder until the upper elevation is reached by the lower box girder (9) and the telescopic bracket (10) of the lower box girder, and operating the main hydraulic oil cylinder (2) to enable the lower box girder (9) to stop rising;
H. the telescopic bracket hydraulic cylinder of the lower box girder is operated, so that after the telescopic bracket (10) of the lower box girder extends out, the two ends of the telescopic bracket (10) of the lower box girder extend into the supporting holes reserved at the previous elevation, the main hydraulic cylinder (2) is operated, so that the piston rod of the main hydraulic cylinder (2) is extended, the telescopic bracket (10) of the lower box girder is completely realized, and the lifting process of a standard layer is finished.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910106965.1A CN109650226B (en) | 2019-02-02 | 2019-02-02 | Anti-falling support beam column system of hydraulic jacking steel platform and application method of anti-falling support beam column system |
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|---|---|---|---|
| CN201910106965.1A CN109650226B (en) | 2019-02-02 | 2019-02-02 | Anti-falling support beam column system of hydraulic jacking steel platform and application method of anti-falling support beam column system |
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| CN109650226A CN109650226A (en) | 2019-04-19 |
| CN109650226B true CN109650226B (en) | 2023-11-10 |
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| CN112681710B (en) * | 2020-12-25 | 2022-03-15 | 中建三局第一建设工程有限责任公司 | Inverted construction platform system and construction method |
| CN114059770B (en) * | 2021-09-02 | 2023-08-08 | 上海建工四建集团有限公司 | Construction method for underpinning of construction worker goods elevator foundation |
| CN114351866B (en) * | 2022-01-17 | 2024-03-29 | 广州市三域科技有限公司 | Large-scale steel sheet beam type shed frame |
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| CN109650226A (en) | 2019-04-19 |
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