CN113062469B - Large-span net rack jacking device and using method - Google Patents
Large-span net rack jacking device and using method Download PDFInfo
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- CN113062469B CN113062469B CN202110366921.XA CN202110366921A CN113062469B CN 113062469 B CN113062469 B CN 113062469B CN 202110366921 A CN202110366921 A CN 202110366921A CN 113062469 B CN113062469 B CN 113062469B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/35—Extraordinary methods of construction, e.g. lift-slab, jack-block
- E04B1/3533—Extraordinary methods of construction, e.g. lift-slab, jack-block characterised by the raising of hingedly-connected building elements, e.g. arches, portal frames
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- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- 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
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
- E04G21/16—Tools or apparatus
- E04G21/162—Handles to carry construction blocks
Abstract
The application relates to a large-span net rack jacking device and a using method, relates to the field of building construction, and it includes rack, pneumatic cylinder and fixed knot, the pneumatic cylinder is installed subaerial through setting up in the base of self bottom, the piston rod and the fixed knot of pneumatic cylinder can be dismantled and be connected, the fixed knot is connected with the rack, the fixed knot below is equipped with standard festival, the standard festival is located the base top, be equipped with clamping device on the base, clamping device is including the drive assembly who is used for pressing from both sides the clamping component and the drive clamping component of tight standard festival. The method and the device have the advantages that the possibility of deviation of the standard knot is reduced, and the effect of stability of the standard knot support is improved.
Description
Technical Field
The application relates to the field of building construction, in particular to a large-span net rack jacking device and a using method.
Background
At present, the building industry develops very rapidly, and buildings with large span spaces are formed in succession and are not few landmark buildings in regions. The net rack is a representative structure in the aspect of large-span space structure, the net rack is mainly used in buildings such as large stadiums, large exhibition centers and factory buildings, the buildings are characterized in that a wider space can be provided, the using units can be divided at any time according to using requirements in the future, the use is flexible, and obstacles are few. The steel structure net rack has the advantages of high strength, light weight, good earthquake resistance, high construction speed, attractive appearance and the like, and is widely applied.
The net rack in the related art is shown in fig. 1 and comprises a plurality of basic units which are spliced with one another, wherein each basic unit comprises a lower chord ball 41, an upper chord ball 43, web members 42 and ejector rods 44, four lower chord balls 41 are arranged, adjacent lower chord balls 41 are connected through the web members 42, and the four lower chord balls 41 and the four web members 42 form a rectangle. The upper chord ball 43 is positioned above the center of the rectangle formed by the lower chord ball 41 and the web members 42, the upper chord ball 43 is connected with the lower chord ball 41 through the ejector rods 44, the number of the ejector rods 44 is four, and the lower chord ball 41, the upper chord ball 43, the web members 42 and the ejector rods 44 are integrally formed into a quadrangular pyramid shape. The adjacent base units share the lower chord ball 41 and the web member 42, and the lower chord ball 41 and the web member 42, the ejector rod 44 and the upper chord ball 43 and the lower chord ball 41 are welded together to increase the connection strength.
Chinese patent publication No. CN111719705A discloses a construction process for jacking a large-span net rack, which includes the following steps: the method comprises the steps of calculation of jacking quantity and position, assembly of a net rack, installation of a jacking device, reinforcement of a floor slab and jacking of the net rack. When the net rack is jacked, an operator starts a hydraulic pump to enable a piston rod of a hydraulic oil cylinder to synchronously lift for a stroke, then a second standard joint is installed above the first standard joint, oil returned by the hydraulic pump enables a cylinder body of the hydraulic oil cylinder to lift, a cross beam is moved to the second standard joint to complete a stroke, and the jacking is stopped when the net rack is jacked repeatedly to enable the net rack to lift to 10-20 cm above the designed elevation. When the installation is unloaded, the hydraulic oil cylinder is synchronously descended to drive the net rack to fall on the preset installation seat, and the jacking construction is completed.
The inventor finds that when the standard knot is placed on the ground to support the net rack, the standard knot can deviate due to manufacturing or installation errors of the net rack and the standard rack, and potential safety hazards exist.
Disclosure of Invention
In order to improve the problem that the standard knot probably appears the skew when supporting the rack, this application provides a large-span rack jacking device and application method.
First aspect, the application provides a large-span rack jacking device adopts following technical scheme:
the utility model provides a large-span rack jacking device, includes rack, pneumatic cylinder and fixed knot, the pneumatic cylinder is installed in subaerial through setting up in the base of self bottom, the piston rod and the fixed knot of pneumatic cylinder can be dismantled and be connected, the fixed knot is connected with the rack, the fixed knot below is equipped with the standard festival, the standard festival is located the base top, be equipped with clamping device on the base, clamping device is including the drive assembly who is used for pressing from both sides the clamping component of tight standard festival and drive clamping component.
Through adopting above-mentioned technical scheme, when the standard festival was placed on the base, drive assembly drive clamping assembly pressed from both sides tight to the standard festival, reduced the standard festival and taken place the possibility of skew, promoted the stability that the standard festival supported.
Optionally, clamping component includes support and clamping jaw, the support is equipped with four, and corresponds to be located the base all around, the clamping jaw includes diaphragm and riser, the riser rotates with the support that corresponds to be connected, the riser homoenergetic is rotated towards the pneumatic cylinder, the diaphragm is fixed in on the roof of riser, the diaphragm is towards the one end and the standard festival butt of pneumatic cylinder.
Through adopting above-mentioned technical scheme, need press from both sides tight standard festival, four risers rotate towards the pneumatic cylinder simultaneously for four diaphragms are simultaneously with standard festival butt, realize spacing to the standard festival.
Optionally, drive assembly includes drive block and push rod, the drive block is located the below of base, vertical direction sliding connection is followed with the base to the drive block, the diameter of drive block is along the direction crescent of base orientation pneumatic cylinder, the push rod is equipped with four, and corresponds with four risers, push rod and base sliding connection, when the drive block moves towards the direction of keeping away from the pneumatic cylinder, the side of drive block and the diameter crescent of push rod butt department for the push rod promotes the riser and rotates, so that the diaphragm is towards the one end and the standard festival butt of standard festival.
Through adopting above-mentioned technical scheme, when the drive block moved towards the direction of keeping away from the base, the side of drive block increased gradually with the diameter of push rod butt department, and then promoted the push rod and removed towards the riser to promote the riser and rotate, make the diaphragm remove towards the standard festival, direct diaphragm and standard festival butt.
Optionally, be equipped with the actuating lever on the roof of driving block, the actuating lever passes the base, the part that the base was worn out to the actuating lever is equipped with the drive plate, the first compression spring of fixedly connected with on the base, the one end that the base was kept away from to first compression spring is connected with the drive plate, be equipped with the touch panel on the piston rod of pneumatic cylinder, during the piston rod withdrawal of pneumatic cylinder, the diapire of touch panel and the roof butt of actuating lever to make the driving block move towards the direction of keeping away from the base, when the piston rod withdrawal of pneumatic cylinder finishes, diaphragm and standard festival butt.
Through adopting above-mentioned technical scheme, when the piston rod of pneumatic cylinder retracted, it moved down to drive the touch panel, and the in-process that moves down, the diapire of touch panel was with the roof butt of actuating lever gradually, then promoted the actuating lever and continued to move down, and then promoted the push rod, realized spacing to the standard festival, and first compression spring then is convenient for when the piston rod of pneumatic cylinder stretches out for the actuating lever resets.
Optionally, be equipped with the mounting panel on the base, the mounting panel includes vertical board and horizontal plate, vertical board is fixed in on the base, the horizontal plate is fixed in on the roof of vertical board, the horizontal plate is equipped with the sliding block towards the one end of actuating lever, the groove of sliding has been seted up along vertical direction on the actuating lever, the sliding block is through sliding groove and actuating lever sliding connection, when the piston rod of pneumatic cylinder stretches out, the roof of drive plate and the diapire butt of horizontal plate.
Through adopting above-mentioned technical scheme, the sliding block has increased the gliding stability of actuating lever through sliding groove and actuating lever sliding connection, and the horizontal plate can block the drive plate simultaneously.
Optionally, the vertical plate is rotatably connected with the support through a rotating shaft, a torsion spring is arranged on the rotating shaft, and the torsion spring applies torsion force to the vertical plate, so that the transverse plate rotates towards the direction far away from the hydraulic cylinder.
Through adopting above-mentioned technical scheme, the torsion of torsional spring is convenient for make the horizontal plate rotate towards the direction of keeping away from the pneumatic cylinder, is convenient for give subsequent standard festival and lets out the position, is convenient for place subsequent standard festival.
Optionally, be equipped with the fixed ball on the fixed knot, be equipped with the coupling mechanism who is used for being connected with last string ball on the fixed ball, coupling mechanism is including connecting claw and coupling assembling, it is articulated with the fixed ball to connect the claw along self length direction's one end, it is equipped with a plurality ofly to connect the claw along the circumference of pneumatic cylinder, the one end that the fixed ball was kept away from to the connection claw is with the top butt of last string ball, coupling assembling has the effect of keeping away from the one end of fixed ball with a plurality of connection claws and connecting.
By adopting the technical scheme, the plurality of connecting claws are arranged on the upper chord ball, and then the connecting components are used for connecting the plurality of connecting claws, so that the possibility of separation of the upper chord ball and the fixed ball in the jacking process is reduced.
Optionally, coupling assembling includes the connecting plate, the connecting plate is equipped with the inserted block towards the one end of connecting the claw, the inserted block corresponds the setting with being connected the claw, be equipped with on the connection claw and supply inserted block male slot, be equipped with the connecting piece that makes the inserted block be connected with being connected the claw on the inserted block.
By adopting the technical scheme, the insertion block is inserted into the corresponding slot, and then the insertion block is connected with the connecting claw through the connecting piece, so that the upper chord ball and the fixed ball are fixed.
Optionally, be equipped with the spout on the lateral wall of inserted block, the connecting piece includes slider and second compression spring, slider sliding connection is in the spout, be equipped with on the lateral wall of slot and supply slider male draw-in groove, second compression spring locates in the spout, the one end of second compression spring and the tank bottom butt of spout, the one end butt of draw-in groove is kept away from with the slider to the other end, the one end that the draw-in groove was kept away from to the slider is equipped with the vice rope of traction, the one end that the slider was kept away from to the vice rope of traction penetrates the inserted block from the tank bottom of spout to wear out in the roof of connecting plate, many the part that the vice rope of traction was worn out the connecting plate is connected with same root and pulls the main rope.
Through adopting above-mentioned technical scheme, during the erection joint board, the main rope is pull in the pulling, pulls all vice ropes of pulling of main rope pulling, pulls vice rope and pulls the slider again for the slider withdrawal spout, then inserts the inserted block slot that corresponds, and makes spout and draw-in groove align, then loosens and pulls the main rope, and the slider inserts the draw-in groove under second compression spring's effect, makes the inserted block fixed with being connected the claw.
The second aspect, the application provides a large-span rack jacking device's application method, adopts following technical scheme:
installing a jacking device, namely installing a base, then installing a hydraulic cylinder on the base, then connecting a piston rod of the hydraulic cylinder with a fixed joint, and finally connecting the fixed joint with a net rack;
jacking, namely, extending a piston rod of a hydraulic cylinder, jacking a fixed joint, jacking a net rack by the fixed joint, then installing a standard joint below the fixed joint, then retracting a piston rod of the hydraulic cylinder to enable one end, far away from the fixed joint, of the standard joint to abut against a base, detaching the piston rod of the hydraulic cylinder from the fixed joint, retracting the piston rod of the hydraulic cylinder, then connecting the piston rod of the hydraulic cylinder with the standard joint, extending the piston rod of the hydraulic cylinder, continuing jacking the net rack, and repeatedly adding the standard joint until the net rack rises to a preset height;
and (3) a disassembling step, firstly, installing a bracket for supporting the net rack, after the bracket is stable, unfastening the connection between the fixed knot and the net rack, then retracting a piston rod of the hydraulic cylinder, enabling the bottom wall of the lowest standard knot to be abutted against the top wall of the base, then disconnecting the piston rod of the hydraulic cylinder from the lowest standard knot, extending the piston rod of the hydraulic cylinder, then connecting the piston rod of the hydraulic cylinder with the penultimate standard knot, then disassembling the lowest standard knot, repeatedly disassembling the standard knots until all the standard knots are disassembled, finally transferring all the standard knots and the fixed knot, and completing the disassembling.
Through adopting above-mentioned technical scheme, utilize the mode lifting rack of installing standard festival cooperation pneumatic cylinder additional, promoted the stability and the installation nature of rack lifting, the standard festival is assembled simultaneously, the transportation of the standard festival of also being convenient for reduces the space that occupies, and then saves the cost.
In summary, the present application includes at least one of the following beneficial technical effects:
1. through the arrangement of the clamping assembly and the driving assembly, the possibility of deviation of the standard knot is reduced, and the effect of improving the stability of the standard knot support is achieved;
2. through the setting of coupling assembling, increase the joint strength of fixed ball and last string ball, reduce the possibility that the skew appears between rack and the fixed ball.
Drawings
Fig. 1 is a schematic view showing a structure of a rack embodied in the related art.
Fig. 2 is a schematic structural diagram of the whole in the embodiment of the present application.
Fig. 3 is a schematic structural diagram of a jacking device embodied in the embodiment of the present application.
Fig. 4 is a schematic structural diagram of a connecting mechanism embodied in the embodiment of the present application.
Fig. 5 is a cut-away schematic view of the embodiment of the present application embodying the slide groove, the card slot, and the connecting member.
Fig. 6 is a partially enlarged view of a portion a in fig. 5.
Fig. 7 is a schematic structural diagram of a drive assembly and a clamping assembly embodied in an embodiment of the present application.
Fig. 8 is a partially enlarged view of a portion B in fig. 7.
Description of reference numerals: 1. a base; 2. a hydraulic cylinder; 21. mounting the component; 211. a fixing plate; 212. a connecting rod; 213. a working plate; 22. a touch plate; 3. a fixed joint; 31. fixing the ball; 32. a connecting mechanism; 321. a connecting claw; 3211. a slot; 3212. a card slot; 322. a connecting assembly; 3221. a connecting plate; 3222. inserting a block; 3223. a chute; 323. a connecting member; 3231. a slider; 3232. a second compression spring; 3233. a traction auxiliary rope; 3234. a main traction rope; 4. a net frame; 41. a lower string ball; 42. a web member; 43. a string ball is arranged; 44. a top rod; 5. a standard section; 51. fixing the rod; 6. a clamping device; 61. a drive assembly; 611. a drive block; 612. a drive rod; 6121. a sliding groove; 613. a first compression spring; 614. mounting a plate; 6141. a vertical plate; 6142. a horizontal plate; 6143. a sliding block; 615. a push rod; 616. a drive plate; 62. a clamping assembly; 621. a support; 6211. a rotating shaft; 622. a clamping jaw; 6221. a transverse plate; 6222. a riser.
Detailed Description
The present application is described in further detail below with reference to figures 1-8.
First aspect, the embodiment of the application discloses a large-span net rack jacking device.
Referring to fig. 2 and 3, a large-span rack jacking device includes base 1, pneumatic cylinder 2, fixed knot 3, rack 4 and a plurality of standard festival 5, and base 1 fixed connection is subaerial, and pneumatic cylinder 2 then is fixed in the center department of base 1 roof, and the piston rod of pneumatic cylinder 2 passes through installation component 21 and can dismantle with fixed knot 3 and be connected, and fixed knot 3 passes through coupling mechanism 32 and rack 4 fixed connection, and standard festival 5 then connects on the diapire of fixed knot 3. When jacking up rack 4, the piston rod of pneumatic cylinder 2 stretches out, promotes fixed knot 3 and rises, and then drives rack 4 and rises, then installs standard festival 5 below fixed knot 3, and the back is accomplished in the installation of standard festival 5, has the clearance between standard festival 5 and base 1. The piston rod of pneumatic cylinder 2 this moment contracts for standard festival 5 and 1 butt of base support fixed knot 3, then with pneumatic cylinder 2's piston rod and fixed knot 3 release to be connected, the piston rod of pneumatic cylinder 2 contracts afterwards, then is connected pneumatic cylinder 2's piston rod and standard festival 5, the piston rod of pneumatic cylinder 2 stretches out again afterwards, with 5 jack-ups of standard festival, drives rack 4 and continues to rise, and the standard festival 5 of repeated installation afterwards rises to preset height until rack 4.
Referring to fig. 1 and 2, the net rack 4 includes a plurality of basic units which are spliced with each other, the basic units include four lower bowstrings 41, four upper bowstrings 43, four web members 42 and four ejector rods 44, the adjacent lower bowstrings 41 are connected by the web members 42, the four lower bowstrings 41 and the four web members 42 form a rectangle, and the lower bowstrings 41 and the web members 42 are welded with each other. The upper chord ball 43 is positioned above the center of the rectangle formed by the lower chord ball 41 and the web members 42, the upper chord ball 43 is connected with the lower chord ball 41 through the ejector rods 44, four ejector rods 44 are arranged, the lower chord ball 41, the upper chord ball 43, the web members 42 and the ejector rods 44 are integrally formed into a quadrangular pyramid shape, the ejector rods 44 are welded with the upper chord ball 43 and the lower chord ball 41, and adjacent base units share the lower chord ball 41 and the web members 42. The jacking devices are at least provided with one group, two basic units can be provided with one group of jacking devices, and four basic units can be provided with one group of jacking devices, so that the stability of the net rack 4 during rising is ensured.
Referring to fig. 3 and 4, the fixing ball 31 is fixedly connected to the top of the fixing joint 3, the connecting mechanism 32 is disposed on the fixing ball 31, the connecting mechanism 32 includes a connecting claw 321 and a connecting assembly 322, one end of the connecting claw 321 in the length direction thereof is hinged to the fixing ball 31, and the number of the connecting claws 321 is multiple, four in this embodiment, along the circumferential array of the hydraulic cylinder 2. One end of the connecting claw 321 far away from the fixing ball 31 passes through the mandril 44 and is jointed with the top of the upper chord ball 43. The connecting assembly 322 includes a connecting plate 3221, the connecting plate is welded with inserting pieces 3222 towards one end of the connecting claw 321, the number of the inserting pieces 3222 is equal to the number of the connecting claw 321, one inserting piece 3222 and one connecting claw 321 are correspondingly arranged, an inserting slot 3211 for inserting the inserting piece 3222 is formed in the connecting claw 321, and a connecting piece 323 is arranged on the inserting piece 3222 and used for connecting the inserting piece 3222 and the connecting claw 321.
Referring to fig. 5 and 6, a sliding groove 3223 is formed in a side wall of the insertion block 3222 along the horizontal direction, the connecting member 323 includes a sliding block 3231 and a second compression spring 3232 both located in the sliding groove 3223, the sliding block 3231 is slidably connected in the sliding groove 3223, one end of the second compression spring 3232 abuts against a groove bottom of the sliding groove 3223, and the other end abuts against one end of the sliding block 3231 facing the groove bottom of the sliding groove 3223. The side wall of the slot 3211 is provided with a slot 3212 for the slider 3231 to insert into, and when the slider 3231 is simultaneously located in the sliding groove 3223 and the slot 3212, the insertion block 3222 and the connecting claw 321 are difficult to separate, and the fixing ball 31 and the upper chord ball 43 are fixed by the connecting claw 321. One end of the sliding block 3231, which is far away from the clamping groove 3212, is fixedly connected with a traction auxiliary rope 3233, one end of the traction auxiliary rope 3233, which is far away from the sliding block 3231, penetrates into the insertion block 3222 from the bottom of the sliding groove 3223 and then penetrates out from the top wall of the connecting plate 3221, and one end of the plurality of traction auxiliary ropes 3233, which penetrates out of the connecting plate 3221, is fixedly connected with a same traction main rope 3234.
When the upper chord ball 43 and the fixing ball 31 are fixed, the four connecting claws 321 are all lapped on the top of the upper chord ball 43, then the traction main rope 3234 is pulled, so that the four sliding blocks 3231 are all retracted into the sliding grooves 3223, then the inserting blocks 3222 are all inserted into the corresponding inserting grooves 3211, the sliding grooves 3223 are aligned with the clamping grooves 3212, then the traction main rope 3234 is loosened, at the moment, the sliding blocks 3231 are inserted into the clamping grooves 3212 under the action of the second compression spring 3232, the inserting blocks 3222 are fixed with the connecting claws 321, and further the fixing ball 31 and the upper chord ball 43 are fixed.
Referring to fig. 3, the mounting assembly 21 includes a fixing plate 211 and four connecting rods 212, the fixing plate 211 is fixed on the top wall of the piston rod of the hydraulic cylinder 2, one end of each connecting rod 212 along the length direction thereof is hinged to the fixing plate 211, the four connecting rods 212 are provided in this embodiment, the fixing segments 3 and the standard segments 5 are both fixedly connected with working plates 213, and the working plates 213 are fixedly connected with the connecting rods 212 through bolts. When the connection object of the piston rod of the hydraulic cylinder 2 needs to be switched, the working plate 213 on the fixed joint 3 and the bolt on the connecting rod 212 are loosened, and after the piston rod of the hydraulic cylinder 2 retracts, the connecting rod 212 and the working plate 213 on the standard joint 5 are fixedly connected through the bolt.
Referring to fig. 3, the standard knot 5 includes twelve fixing rods 51, the twelve fixing rods 51 are spliced into a rectangular parallelepiped, each side wall of the standard knot 5 includes two horizontally arranged fixing rods 51 and two vertically arranged fixing rods 51, one end of each horizontally arranged fixing rod 51 on one side wall is hinged to the adjacent vertically arranged fixing rod 51, and the other end of each horizontally arranged fixing rod 51 is fixedly connected to the other vertically arranged fixing rod 51 through a bolt. When the fixed knot 3 is installed, the two horizontally arranged fixed rods 51 can be opened, then the standard knot 5 is moved, the hydraulic cylinder 2 is positioned in the standard knot 5, and then the two horizontally arranged fixed rods 51 are fixed, so that the standard knot 5 can be conveniently installed and disassembled.
Referring to fig. 7 and 8, the base 1 is provided with the clamping device 6, the clamping device 6 includes a clamping assembly 62 and a driving assembly 61, the driving assembly 61 includes a driving block 611 and a driving rod 612, the driving block 611 is located below the base 1, the driving rod 612 is fixed on the top wall of the driving block 611, in this embodiment, two driving rods 612 are provided, and are arranged in a circumferential array along the driving block 611. The driving rod 612 is disposed in a vertical direction and passes through the top wall of the base 1. A driving plate 616 is arranged at the part of the driving rod 612 penetrating through the base 1, a first compression spring 613 is fixedly connected to the base 1, and one end of the first compression spring 613 far away from the base 1 is fixedly connected with the driving plate 616. Still be equipped with mounting panel 614 on the base 1, mounting panel 614 includes integrated into one piece's vertical board 6141 and horizontal plate 6142, vertical board 6141 fixed connection on base 1, horizontal plate 6142 then is located the roof of vertical board 6141, and horizontal plate 6142 is towards the one end fixedly connected with glide block 6143 of actuating lever 612, has seted up glide groove 6121 along vertical direction on the actuating lever 612, and glide block 6143 passes through glide groove 6121 and actuating lever 612 sliding connection. One end of the driving plate 616, which is far from the first compression spring 613, abuts against a horizontal plate 6142, and the horizontal plate 6142 is used for limiting the driving plate 616. The projection of the sliding block 6143 in the vertical direction may be T-shaped, which may increase the stability of the sliding of the driving rod 612.
Referring to fig. 7, a touch plate 22 is fixedly connected to the piston rod of the hydraulic cylinder 2, and when the piston rod of the hydraulic cylinder 2 retracts, the touch plate 22 moves toward the base 1 and gradually abuts against the top wall of the driving rod 612, thereby pushing the driving rod 612 to move in a direction away from the fixing ball 31. The clamping assembly 62 comprises four supports 621 and four clamping jaws 622, the four supports 621 are correspondingly fixed on the ground around the base 1, and the four clamping jaws 622 are also correspondingly arranged on the four supports 621. Clamping jaw 622 includes integrated into one piece's diaphragm 6221 and riser 6222, fixedly connected with pivot 6211 on the support 621, pivot 6211 and riser 6222 rotate the connection, and four risers 6222 all can rotate towards pneumatic cylinder 2, and diaphragm 6221 is located the roof of riser 6222. The rotating shaft 6211 is sleeved with a torsion spring, one end of the torsion spring is fixedly connected with the vertical plate 6222, the other end of the torsion spring is fixedly connected with the support 621, and the torsion spring applies a torsion force to the vertical plate 6222 to enable the transverse plate 6221 to rotate towards the direction far away from the hydraulic cylinder 2.
Referring to fig. 7, the driving assembly 61 further includes four push rods 615, the push rods 615 are provided with four corresponding to the four vertical plates 6222, the push rods 615 are slidably connected to the side walls of the base 1, and the diameter of the driving block 611 gradually increases along the base 1 toward the hydraulic cylinder 2. When the piston rod of the hydraulic cylinder 2 retracts, the touch plate 22 pushes the driving rod 612 to move towards the ground, the driving rod 612 drives the driving block 611 to move towards the direction far away from the hydraulic cylinder 2, the diameter of the abutting part of the side surface of the driving block 611 and the push rod 615 is gradually increased, the push rod 615 moves towards the direction far away from the axis of the hydraulic cylinder 2, the push rod 615 further pushes the vertical plate 6222 to rotate, and finally one end, facing the standard knot 5, of the transverse plate 6221 abuts against the standard knot 5, and the standard knot 5 is fixed.
In a second aspect, the embodiment of the application discloses a using method of a large-span net rack jacking device.
The method comprises the following steps:
and a step of installing a jacking device, namely installing a base 1, and then installing a hydraulic cylinder 2 on the base 1. The connecting rod 212 is then fixedly connected to the working plate 213 of the fixed joint 3 by bolts. Then the connecting claws 321 are rotated to make a plurality of connecting claws 321 fit with the top of the upper chord ball 43, then the connecting plate 3221 is lifted, the traction main rope 3234 is pulled, the sliding block 3231 retracts into the sliding groove 3223, then the inserting block 3222 is inserted into the corresponding inserting groove 3211, when the sliding groove 3223 is aligned with the clamping groove 3212, the traction main rope 3234 is loosened, the sliding block 3231 is inserted into the clamping groove 3212 under the action of the second compression spring 3232, the net rack 4 is connected with the fixed nodes 3, and then all the fixed nodes 3 are fixed with the net rack 4 in sequence. Then, the net rack 4 is provided with a lifting rod, the traction main ropes 3234 on the same straight line are fixedly connected with the lifting rod, and all the traction main ropes 3234 are fixedly connected with the corresponding lifting rod in sequence.
And in the jacking step, a piston rod of the hydraulic cylinder 2 extends out to jack the fixed joint 3, the fixed joint 3 jacks the net rack 4, and the piston rod of the hydraulic cylinder 2 keeps in an extending state at the moment. Then, the standard knot 5 is moved so that the standard knot 5 is positioned between the base 1 and the fixed knot 3, and then the standard knot 5 is fixed below the fixed knot 3 through bolts, so that a gap exists between the standard knot 5 and the base 1, and the standard knot 5 does not interfere with the transverse plate 6221 in the process of moving to the upper side of the base 1. Thereafter the piston rod of the hydraulic cylinder 2 is slightly retracted so that the end of the standard joint 5 remote from the fixed joint 3 abuts the base 1.
At this time, the connecting rod 212 is detached from the working plate 213 on the fixed joint 3, then the piston rod of the hydraulic cylinder 2 retracts, during the retraction process of the piston rod of the hydraulic cylinder 2, the touch plate 22 moves downwards to push the driving rod 612 and the driving block 611 to move downwards, the driving block 611 drives the push rod 615 to move towards the vertical plate 6222 to push the vertical plate 6222 to rotate, so that the horizontal plate 6221 rotates towards the standard joint 5 until the four horizontal plates 6221 are simultaneously abutted to the standard joint 5, the standard joint 5 is limited, and the possibility of deviation when the standard joint 5 and the connecting rod 212 are installed is reduced. Then the connecting rod 212 is fixedly connected with the working plate 213 on the standard knot 5 through a bolt, then the piston rod of the hydraulic cylinder 2 extends out to continuously jack up the net rack 4, and then the standard knot 5 is repeatedly added until the net rack 4 rises to the preset height. When the piston rod of the hydraulic cylinder 2 extends, the driving plate 616 is lifted by the first compression spring 613, and the transverse plate 6221 is also rotated in a direction away from the hydraulic cylinder 2 by the torsion spring, thereby releasing the limit of the standard knot 5.
And a disassembling step, namely firstly installing a bracket for supporting the net rack 4 on the ground, fixedly connecting the bracket with the net rack 4, lifting all lifting rods after the bracket is stabilized, pulling the traction main rope 3234 by the lifting rods, pulling the traction main rope 3234 and then pulling the traction auxiliary rope 3233, then pulling the sliding block 3231 by the traction auxiliary rope 3233 to retract into the sliding groove 3223, pulling the main rope 3234 to pull the connecting plate 3221 to move upwards at the same time, so that the inserting block 3222 is separated from the connecting claw 321, and further, the connection of the fixing ball 31 and the upper chord ball 43 is released. The piston rod of the hydraulic cylinder 2 is then retracted so that the bottom wall of the lowermost standard knot 5 abuts the top wall of the base 1, the connecting rod 212 is then disconnected from the operating plate 213 of the lowermost standard knot 5, the piston rod of the hydraulic cylinder 2 is then extended, the connecting rod 212 is then connected to the operating plate 213 of the penultimate standard knot 5, and the lowermost standard knot 5 is then removed. And then repeatedly removing the standard knots 5 until all the standard knots 5 are removed, and finally transferring all the standard knots 5 and the fixed knots 3 to finish the removal.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (9)
1. The utility model provides a large-span rack jacking device, includes rack (4), pneumatic cylinder (2) and fixed knot (3), its characterized in that: the hydraulic cylinder (2) is arranged on the ground through a base (1) arranged at the bottom of the hydraulic cylinder (2), a piston rod of the hydraulic cylinder (2) is detachably connected with a fixed joint (3), the fixed joint (3) is connected with a net rack (4), a standard joint (5) is arranged below the fixed joint (3), the standard joint (5) is positioned on the base (1), a clamping device (6) is arranged on the base (1), and the clamping device (6) comprises a clamping component (62) for clamping the standard joint (5) and a driving component (61) for driving the clamping component (62);
clamping assembly (62) are including support (621) and clamping jaw (622), support (621) are equipped with four, and correspond to be located base (1) all around, clamping jaw (622) is equipped with four, four clamping jaw (622) correspond with four support (621) and set up, clamping jaw (622) are including diaphragm (6221) and riser (6222), riser (6222) rotate with support (621) that correspond and are connected, riser (6222) homoenergetic is enough to rotate towards pneumatic cylinder (2), diaphragm (6221) is fixed in on the roof of riser (6222), diaphragm (6221) is towards the one end and standard festival (5) butt of pneumatic cylinder (2).
2. The large-span net rack jacking device according to claim 1, wherein: the driving assembly (61) comprises a driving block (611) and a push rod (615), the driving block (611) is located below the base (1), the driving block (611) is connected with the base (1) in a sliding mode in the vertical direction, the diameter of the driving block (611) gradually increases along the direction, facing the hydraulic cylinder (2), of the base (1), the push rod (615) is provided with four vertical plates (6222) and corresponds to the four vertical plates, the push rod (615) is connected with the base (1) in a sliding mode, when the driving block (611) moves in the direction far away from the hydraulic cylinder (2), the diameter of the portion, abutted to the side face of the driving block (611), of the push rod (615) is gradually increased, the push rod (615) pushes the vertical plates (6222) to rotate, and therefore the transverse plate (6221) abuts against the standard knot (5) towards one end of the standard knot (5).
3. The large-span net rack jacking device according to claim 2, wherein: be equipped with on the roof of drive block (611) actuating lever (612), base (1) is passed in actuating lever (612), the part that base (1) was worn out in actuating lever (612) is equipped with drive plate (616), fixedly connected with first compression spring (613) on base (1), the one end that base (1) was kept away from in first compression spring (613) is connected with drive plate (616), be equipped with touch board (22) on the piston rod of pneumatic cylinder (2), when the piston rod withdrawal of pneumatic cylinder (2), the diapire of touch board (22) and the roof butt of drive lever (612) to make drive block (611) move towards the direction of keeping away from base (1), when the piston rod withdrawal of pneumatic cylinder (2) was accomplished, diaphragm (6221) and standard festival (5) butt.
4. The large-span net rack jacking device according to claim 3, wherein: the base is provided with a mounting plate (614) on the base (1), the mounting plate (614) comprises a vertical plate (6141) and a horizontal plate (6142), the vertical plate (6141) is fixed on the base (1), the horizontal plate (6142) is fixed on the top wall of the vertical plate (6141), one end, facing the driving rod (612), of the horizontal plate (6142) is provided with a sliding block (6143), a sliding groove (6121) is formed in the driving rod (612) in the vertical direction, the sliding block (6143) is in sliding connection with the driving rod (612) through the sliding groove (6121), and when a piston rod of the hydraulic cylinder (2) extends out, the top wall of the driving plate (616) is abutted to the bottom wall of the horizontal plate (6142).
5. The large-span net rack jacking device according to claim 4, wherein: the vertical plate (6222) is rotatably connected with the support (621) through a rotating shaft (6211), a torsion spring is arranged on the rotating shaft (6211), and the torsion spring applies a torsion force to the vertical plate (6222) to enable the transverse plate (6221) to rotate towards a direction far away from the hydraulic cylinder (2).
6. The large-span net rack jacking device according to claim 1, wherein: be equipped with fixed ball (31) on fixed knot (3), be equipped with coupling mechanism (32) that are used for being connected with last string ball (43) on fixed ball (31), coupling mechanism (32) are including connecting claw (321) and coupling assembling (322), it is articulated with fixed ball (31) to connect claw (321) along self length direction's one end, it is equipped with a plurality ofly to connect claw (321) along the circumference of pneumatic cylinder (2), the one end that fixed ball (31) were kept away from in connection claw (321) and the top butt of last string ball (43), coupling assembling (322) have the effect of keeping away from the one end of fixed ball (31) with a plurality of connection claws (321) and connect.
7. The large-span net rack jacking device according to claim 6, wherein: the connecting assembly (322) comprises a connecting plate (3221), an inserting block (3222) is arranged at one end, facing the connecting claw (321), of the connecting plate (3221), the inserting block (3222) and the connecting claw (321) are arranged correspondingly, an inserting groove (3211) for the inserting block (3222) to insert is formed in the connecting claw (321), and a connecting piece (323) for connecting the inserting block (3222) and the connecting claw (321) is arranged on the inserting block (3222).
8. The large-span net rack jacking device according to claim 7, wherein: a sliding groove (3223) is arranged on the side wall of the inserting block (3222), the connecting piece (323) comprises a sliding block (3231) and a second compression spring (3232), the sliding block (3231) is connected in the sliding groove (3223) in a sliding way, a clamping groove (3212) for the sliding block (3231) to insert is arranged on the side wall of the slot (3211), the second compression spring (3232) is arranged in the sliding groove (3223), one end of the second compression spring (3232) is abutted against the groove bottom of the sliding groove (3223), the other end of the second compression spring is abutted against one end, far away from the clamping groove (3212), of the sliding block (3231), one end of the sliding block (3231) far away from the clamping groove (3212) is provided with a traction auxiliary rope (3233), one end of the traction auxiliary rope (3233) far away from the sliding block (3231) penetrates into the inserting block (3222) from the groove bottom of the sliding groove (3223), and the parts of the plurality of auxiliary traction ropes (3233) penetrating through the connecting plate (3221) are connected with the same main traction rope (3234).
9. The use method of the large-span net rack jacking device according to any one of claims 1 to 8, wherein the large-span net rack jacking device comprises the following steps:
installing a jacking device, namely installing a base (1), then installing a hydraulic cylinder (2) on the base (1), then connecting a piston rod of the hydraulic cylinder (2) with a fixed joint (3), and finally connecting the fixed joint (3) with a net rack (4);
jacking, namely, extending a piston rod of a hydraulic cylinder (2), jacking a fixed joint (3), jacking a net rack (4) by the fixed joint (3), then installing a standard joint (5) below the fixed joint (3), then retracting a piston rod of the hydraulic cylinder (2), enabling one end of the standard joint (5), which is far away from the fixed joint (3), to be abutted against a base (1), then detaching a piston rod of the hydraulic cylinder (2) from the fixed joint (3), then retracting the piston rod of the hydraulic cylinder (2), then connecting the piston rod of the hydraulic cylinder (2) with the standard joint (5), then extending the piston rod of the hydraulic cylinder (2), continuing jacking the net rack (4), and repeatedly adding the standard joint (5) until the net rack (4) rises to a preset height;
and (2) a disassembling step, firstly, installing a support for supporting the net rack (4), after the support is stable, disconnecting the fixed knot (3) from the net rack (4), then retracting a piston rod of the hydraulic cylinder (2) to enable the bottom wall of the lowest standard knot (5) to be abutted against the top wall of the base (1), then disconnecting the piston rod of the hydraulic cylinder (2) from the lowest standard knot (5), then extending the piston rod of the hydraulic cylinder (2), then connecting the piston rod of the hydraulic cylinder (2) with the penultimate standard knot (5), then disassembling the lowest standard knot (5), repeatedly disassembling the standard knot (5) until all standard knots (5) are disassembled, and finally transferring all standard knots (5) and the fixed knot (3) to finish disassembling.
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| CN114263304B (en) * | 2021-12-31 | 2023-12-01 | 成都建工雅安建设有限责任公司 | Large roof grid structure and installation method thereof |
| CN116591310B (en) * | 2023-07-18 | 2023-11-24 | 山西七建集团有限公司 | Steel structure net rack installation jacking device and application method thereof |
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| GB1532305A (en) * | 1976-08-31 | 1978-11-15 | Koennyueipari Szereloe Es Epit | Method and apparatus for building a multi-storey building |
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