CN113682970A - Prefabricated floor hoisting structure of assembly type structure - Google Patents
Prefabricated floor hoisting structure of assembly type structure Download PDFInfo
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- CN113682970A CN113682970A CN202110906547.8A CN202110906547A CN113682970A CN 113682970 A CN113682970 A CN 113682970A CN 202110906547 A CN202110906547 A CN 202110906547A CN 113682970 A CN113682970 A CN 113682970A
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- Prior art keywords
- rod
- hook
- connecting rod
- guide
- rod body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/28—Duplicate, e.g. pivoted, members engaging the loads from two sides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/48—Automatic control of crane drives for producing a single or repeated working cycle; Programme control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- 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
- B66C5/06—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods with runways or tracks supported for lateral swinging movements
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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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Automation & Control Theory (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a prefabricated floor hoisting structure of an assembly type building, which comprises a supporting truss and a cross beam, wherein a hoisting platform is arranged on the cross beam, and two rows of hook assemblies are arranged on the left side and the right side of the hoisting platform; the hook unit comprises a driving structure and a main hook; the main hook comprises a connecting rod and a hook body, a guide groove is formed in the hook body, and a guide groove is formed in the hook body; the connecting rod is fixedly connected with a fixing plate, a fixing hole is formed in the fixing plate, and a proximity switch is fixed in the fixing hole; one side of the connecting rod, which is back to the hook body, is provided with a hinge lug, and the hinge lug is hinged with a contact component; the contact assembly comprises a first rod body, a second rod body and a contact piece; the first rod body is hinged with the hinge lug, one end of the second rod body, which is far away from the first rod body, is positioned in the guide groove, the contact piece is positioned in the guide groove, and the upper end of the first rod body is positioned on one side, back to the connecting rod, of the proximity switch; the controller is electrically connected with the proximity switch and is in control connection with the driving structure; the construction efficiency is improved, and the safety of workers is guaranteed.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a prefabricated floor slab hoisting structure for an assembly type building.
Background
The fabricated building is fabricated on site by using prefabricated components, and a large number of prefabricated components are required in the building process of the fabricated building at the present stage. The prefabricated component in the fabricated building comprises a prefabricated floor slab, the prefabricated floor slab comprises a bottom die, a steel bar truss fixedly connected with the bottom die through a connecting fastener and concrete poured on the bottom die, the steel bar truss comprises two lower chord steel bars, an upper chord steel bar positioned above the two lower chord steel bars, and reinforcing steel bars arranged in a triangular shape are fixed between the lower chord steel bar and the upper chord steel bar; the end faces of the upper chord steel bar and the two lower chord steel bars are arranged in a triangular shape, after the concrete pouring is finished, the upper chord steel bar of the steel bar truss of the prefabricated floor slab is located above the concrete, and the reinforcing steel bar is partially located above the concrete.
In the process of building the fabricated building, the hoisting and in-place process of the prefabricated component is the most critical, and particularly when the prefabricated floor slab is hoisted, the prefabricated component needs to be hoisted by utilizing a hoisting device. The operation mode has the problems of low automation degree, low construction efficiency, difficult safety guarantee and the like.
Disclosure of Invention
In view of this, the invention aims to provide a prefabricated floor slab hoisting structure for an assembly type building, so as to solve the problems of low automation degree, low construction efficiency, difficult safety guarantee and the like in the prefabricated floor slab hoisting process in the prior art.
In order to achieve the purpose, the technical scheme adopted by the prefabricated floor hoisting structure of the fabricated building is as follows:
the utility model provides an assembly type structure precast floor slab hoisting structure, includes:
supporting a truss: the supporting truss comprises a left truss and a right truss which are arranged at left and right intervals;
a beam: the cross beam is arranged between the left truss and the right truss and can move in the front-back direction relative to the supporting truss;
hoisting the platform: the lifting platform is arranged on the cross beam, and a telescopic structure is arranged between the lifting platform and the cross beam and can be stretched in the vertical direction so as to realize height adjustment of the lifting platform;
two rows of hook assemblies are arranged on the left side and the right side of the hoisting platform, each row of hook assemblies comprises at least three groups of hook units, and the distance between every two adjacent hook units is larger than or smaller than the distance between adjacent intersection points of reinforcing steel bars and upper chord steel bars in the prefabricated floor slab;
the hook unit comprises a driving structure relatively fixed on the hoisting platform and a main hook in transmission connection with the driving structure;
the driving structure comprises a telescopic rod which is telescopic left and right, the main hook is L-shaped, the main hook comprises a connecting rod which extends vertically and a hook body which is fixed at the lower end of the connecting rod, a guide groove which is communicated left and right is formed in the hook body, and a guide groove which is communicated front and back is formed in one end of the hook body, which is far away from the connecting rod;
the upper end of the connecting rod of the main hook is in transmission connection with the telescopic rod;
the connecting rod is fixedly connected with a fixing plate, a front and back through fixing hole is formed in the fixing plate, and a proximity switch is fixed in the fixing hole;
the middle part of one side of the connecting rod, which is back to the hook body, is provided with a hinge lug, the hinge lug is arranged below the fixed plate, and the hinge lug is hinged with a contact component;
the contact assembly comprises a first rod body, a second rod body hinged with the lower end of the first rod body, and a contact piece fixed at one end of the second rod body, which is far away from the first rod body;
the first rod body is hinged with the hinge lug, one end of the second rod body, which is far away from the first rod body, is positioned in the guide groove and is in sliding fit with the guide groove, the contact piece is positioned in the guide groove and is in sliding fit with the guide groove, and the upper end of the first rod body is positioned on one side, back to the connecting rod, of the proximity switch;
the contact piece is arranged in a protruding way relative to the end face of the hook body far away from the connecting rod;
a controller: the controller is electrically connected with the proximity switch and is in control connection with the driving structure.
Has the advantages that: when the hoisting structure hooks a prefabricated floor slab, the telescopic structure is telescopic to enable the hoisting platform to move downwards, when the hoisting platform moves to a certain height, the driving structure works to drive the telescopic rod to move telescopically, so that the main hook in the hook unit in the left hook assembly moves rightwards, the main hook in the hook unit in the right hook assembly moves leftwards, in the moving process, if the contact piece in the contact assembly touches a reinforcing steel bar of a steel bar truss of the prefabricated floor slab, the contact piece pushes the second rod body to move towards the direction of the first rod body, so that the first rod body is driven to rotate around a hinge point, the upper end of the second rod body touches the proximity switch, the proximity switch transmits a signal to the controller, and the controller controls the driving structure to stop working, so that the main hook stops moving; if the contact piece in the contact assembly does not contact with the reinforcing steel bar of the steel bar truss of the prefabricated floor slab, the main hook continues to move, and the main hook is enabled to be hooked on the upper chord steel bar of the steel bar truss of the prefabricated floor slab so as to realize hoisting of the prefabricated floor slab.
Furthermore, a return spring is arranged between the connecting rod and the first rod body; one side of the first rod body facing the connecting rod is provided with a limiting bulge.
Has the advantages that: the reset spring is arranged to ensure the position of the first rod body relative to the connecting rod, so that the second rod body is positioned in the guide groove, the contact piece is positioned in the guide groove and is arranged in a protruding manner relative to the end face, far away from the connecting rod, of the hook body, and therefore when the main hook moves towards the steel bar truss, if the main hook meets the reinforcing steel bar, the contact piece can be in contact with the reinforcing steel bar firstly; spacing bellied setting can carry on spacingly to the first body of rod, avoids the contact to deviate from the guiding groove.
The lower extreme of the first body of rod is provided with the regulation slot hole, the one end towards the first body of rod of the second body of rod is provided with wears to establish in adjusting the slot hole and with adjusting slot hole sliding fit's guide post.
Has the advantages that: when the second rod body moves along the guide groove, the arrangement of the guide post and the adjusting long hole can ensure that the second rod body pushes the first rod body to rotate around the hinge point, so that the top end of the first rod body touches the proximity switch, and the work of the driving structure is controlled.
The lifting platform is characterized in that a guide rod extending along the left-right direction is fixedly arranged below the lifting platform, the driving structure is fixed below the guide rod, a transmission block is fixed between a telescopic rod of the driving structure and the main hook, and a U-shaped groove matched with the guide rod in a sliding mode is formed in the top of the transmission block.
Has the advantages that: the guide rod is in guide sliding fit with the U-shaped groove, and under the driving of the driving structure, the main hook can be guaranteed to move along the extending direction of the guide rod, namely, the telescopic direction of the telescopic rod of the driving structure and the moving direction of the main hook are located on a straight line, so that the force transmission between the driving structure and the main hook is facilitated.
Furthermore, the groove comprises a front groove wall, a rear groove wall and a bottom wall connecting the front groove wall and the rear groove wall, a backward convex guide rib is arranged at the upper end of the front groove wall, a forward convex guide rib is arranged at the upper end of the rear groove wall, a sliding groove extending along the left-right direction is arranged on the guide rod, and the sliding groove is matched with the guide rib in a sliding manner.
Has the advantages that: the guide edge is in guide sliding fit with the sliding groove, and the main hook is hung in the sliding groove through the guide edge, so that the main hook is prevented from falling downwards.
The fixed plate is L form, includes the first plate body that extends along the front and back direction and fixes at first plate body front end and the second plate body that extends along the left right direction, and first plate body is fixed on the connecting rod, and the fixed orifices is seted up on the second plate body.
Has the advantages that: the structural style of fixed plate has made things convenient for proximity switch to extend along fore-and-aft direction and has arranged, and the structural style of fixed plate guarantees its stability of being connected with the connecting rod.
The middle of the hinged lug is provided with a crack, and the first rod body is arranged in the crack.
Has the advantages that: the setting of crack is carried on spacingly in the front and back direction to first body of rod, avoids first body of rod to remove in the front and back direction for articulated ear.
The hook units in the two rows of hook components are correspondingly arranged left and right.
Has the advantages that: the hook units are arranged regularly, and the hook units are convenient to position and install.
Each row of hook assemblies includes five groups of hook units.
Has the advantages that: the hook units are hung on the upper chord steel bars of the steel bar truss of the prefabricated floor slab as many as possible, so that the prefabricated floor slab is smoothly hoisted.
The upper portion of left side truss is fixed and is provided with the left track that extends along the fore-and-aft direction, and the upper portion of right side truss is fixed and is provided with the right track that extends along the fore-and-aft direction, the crossbeam sets up between left track and right track, the left end and the left track direction sliding fit of crossbeam, the right-hand member and the right track direction sliding fit of crossbeam.
Has the advantages that: the arrangement of the left rail and the right rail ensures that the cross beam can move smoothly in the front-back direction.
Drawings
Fig. 1 is a schematic structural view of a prefabricated floor slab hoisting structure of an assembly type building according to the invention;
fig. 2 is a schematic structural view of a hook unit and a guide rod of the prefabricated floor slab hoisting structure of the fabricated building in fig. 1;
fig. 3 is a schematic structural view of a main hook of the hooking unit in fig. 2;
fig. 4 is a schematic view of the structure of the contact assembly of the hooking unit in fig. 2.
Reference numerals: 1-a left truss; 2-right truss; 3-a cross beam; 4-a telescopic hydraulic cylinder; 5-hoisting the platform; 6-a hooking unit; 7-a guide rod; 8-a chute; 9-driving a hydraulic cylinder; 10-a transmission block; 11-a groove; 12-a connecting rod; 13-a hook body; 14-a fixed plate; 15-hinge ears; 16-a fixation hole; 17-a proximity switch; 18-a first rod; 19-a second rod; 20-contact piece; 21-a limiting bulge; 22-a return spring; 23-adjusting the long hole; 24-crack; 25-a first connecting column; 26-a guide groove; 27-a guide groove; 28-second connecting column.
Detailed Description
The prefabricated floor slab hoisting structure of the fabricated building of the invention is further described in detail with reference to the accompanying drawings and the specific embodiments:
as shown in fig. 1, the prefabricated floor slab hoisting structure for the fabricated building comprises a support truss fixed on the ground, wherein the support truss comprises a left truss 1 and a right truss 2 which are arranged at left and right intervals, the left truss 1 comprises vertical frames which are arranged in parallel at intervals from front to back and a top frame which is fixed at the upper ends of the vertical frames and extends along the front-back direction, and a left track which extends along the front-back direction is arranged on the top frame; the right truss 2 comprises a vertical frame and a top frame, wherein the vertical frame is arranged in a front-back parallel mode at intervals, the top frame is fixed to the upper end of the vertical frame and extends in the front-back direction, and a right rail extending in the front-back direction is arranged on the top frame. A cross member 3 is provided between the left truss 1 and the right truss 2, and the cross member 3 is movable in the front-rear direction with respect to the support truss. Specifically, crossbeam 3 sets up between left track and right track, crossbeam 3's left end and left track direction sliding fit, crossbeam 3's right-hand member and right track direction sliding fit. Specifically, driving motors for driving the cross beams 3 to extend in the front-rear direction are respectively arranged on the top frame.
The middle of the cross beam 3 is fixed with a telescopic structure, the telescopic end of the telescopic structure is located at the lower end of the cross beam 3, the telescopic end of the telescopic structure is fixed with a hoisting platform 5, and the telescopic structure can stretch along the up-down direction so as to realize height adjustment of the hoisting platform 5. In this embodiment, the telescopic structure is a telescopic hydraulic cylinder 4; the hoisting platform 5 is a flat structure parallel to the ground.
Two rows of hook components are arranged on the left side and the right side of the hoisting platform 5, each row of hook components comprises at least three groups of hook units 6, the hook units 6 in each row of hook components are correspondingly arranged left and right, and in the embodiment, each row of hook components comprises five groups of hook units 6. The distance of adjacent couple unit 6 is greater than the distance between the adjacent nodical of reinforcing bar and last chord steel bar in the precast floor to when one of them couple unit 6 can not be because of the setting of reinforcing bar with steel bar truss's last chord steel bar hook, other hook units can carry out the hook with last chord steel bar. In other embodiments, the distance between adjacent hooking units 6 is less than the distance between adjacent intersections of reinforcing bars and upper chord bars in the prefabricated floor slab.
As shown in fig. 2, the guide rod 7 extending along the left-right direction is fixedly arranged below the hoisting platform 5, the left end of the guide rod 7 is flush with the left side of the hoisting platform 5, the right end of the guide rod 7 is flush with the right side of the hoisting platform 5, and the hook unit 6 is fixed on the guide rod 7 so as to realize the fixed connection of the hook unit 6 relative to the hoisting platform 5. In this embodiment, the guide bar 7 has a rectangular cross-sectional shape.
As shown in fig. 2, the hook unit 6 includes a driving structure relatively fixed on the hoisting platform 5 and a main hook in transmission connection with the driving structure, specifically, the driving structure is fixed on the guiding member by a U-shaped fixing member, in this embodiment, the driving structure is a driving hydraulic cylinder 9. The driving hydraulic cylinder 9 includes a telescopic rod capable of stretching left and right, and the telescopic rod of the driving hydraulic cylinder 9 is located below the guide rod 7 and is arranged in parallel with the guide rod 7 up and down. A transmission block 10 is fixed between the telescopic rod of the driving hydraulic cylinder 9 and the main hook, and a U-shaped groove 11 matched with the guide rod 7 in a sliding mode is formed in the top of the transmission block 10. Guide bar 7 and the direction sliding fit of U-shaped recess 11, under the drive of drive structure, can guarantee that the main couple moves along the direction that guide bar 7 extends, promptly, the flexible direction of the telescopic link of drive structure and main couple moving direction are located through the straight line, make things convenient for the transmission of the power between drive structure and the main couple.
The groove 11 comprises a front groove wall, a rear groove wall and a bottom wall connecting the front groove wall and the rear groove wall, a guide rib protruding backwards is arranged at the upper end of the front groove wall, a guide rib protruding forwards is arranged at the upper end of the rear groove wall, a sliding groove 8 extending along the left-right direction is arranged on the guide rod 7, and the sliding groove 8 is matched with the guide rib in a sliding mode. The main hook is hung in the sliding groove 8 through the guide edge hook, so that the main hook is prevented from falling downwards.
Specifically, as shown in fig. 3, the main hook is L-shaped, the main hook includes a connecting rod 12 extending vertically and a hook body 13 fixed at the lower end of the connecting rod 12, the hook body 13 is provided with a left-right through guide groove 26, and one end of the hook body 13 away from the connecting rod 12 is provided with a front-back through guide groove 27. The upper end of the connecting rod 12 of the main hook is fixedly connected with the transmission block 10.
Connecting rod 12's fixedly connected with fixed plate 14, in this embodiment, fixed plate 14 is the L form, include along the first plate body that the front and back direction extends and fix the second plate body at first plate body front end and extend along the left and right directions, first plate body is fixed on connecting rod 12, fixed orifices 16 have been seted up on the second plate body, in this embodiment, fixed orifices 16 are rectangular hole, be fixed with in the fixed orifices 16 along the proximity switch 17 of front and back direction extension, proximity switch 17 is including the touching section that is located the second plate body rear side. The proximity switch 17 is located on the side of the touch section of the proximity switch 17 facing away from the connecting rod 12.
The middle part of one side of the connecting rod 12, which is back to the hook body 13, is provided with a hinge lug 15, the hinge lug 15 is arranged below the fixing plate 14, the middle part of the hinge lug 15 is provided with a crack 24 with an opening deviating from the connecting rod 12, a contact component is arranged in the crack 24, and the contact component is hinged with the hinge lug 15.
As shown in fig. 4, the contact assembly includes a first rod 18, a second rod 19 hinged to a lower end of the first rod 18, and a contact 20 fixed to an end of the second rod 19 away from the first rod 18. The first rod body 18 is located in the gap 24 and is connected with the hinge lug 15 in a hinged mode, the lower end of the first rod body 18 is provided with an adjusting long hole 23, one end, facing the first rod body 18, of the second rod body 19 is provided with a guide column which penetrates through the adjusting long hole 23 and is in sliding fit with the adjusting long hole 23, and the long shaft of the adjusting long hole 23 extends in the up-and-down direction. When the second rod 19 moves along the guide groove 26, the arrangement of the guide post and the adjustment long hole 23 can ensure that the second rod 19 pushes the first rod 18 to rotate around the hinge point, so that the top end of the first rod 18 touches the proximity switch 17. The end of the second rod 19 away from the first rod 18 is located in the guide groove 26 and is in sliding fit with the guide groove 26, the contact 20 is located in the guide groove 27 and is in sliding fit with the guide groove 27, and the upper end of the first rod 18 is located on the side of the proximity switch 17 facing away from the connecting rod 12. The contact piece 20 is provided to protrude from the end surface of the hook body 13 away from the connecting bar 12. In this embodiment, the contact piece 20 has a horizontally arranged sheet-like structure, and the dimension of the contact piece 20 in the front-rear direction is larger than the dimension of the hook body 13 in the front-rear direction.
Be provided with reset spring 22 between connecting rod 12 and the first body of rod 18, the front side of specific connecting rod 12 is fixed with first spliced pole 25, the front side of the first body of rod 18 is fixed with second spliced pole 28, reset spring 22's one end is hooked on first spliced pole 25, reset spring 22's the other end is hooked on second spliced pole 28, reset spring 22's setting can make the main couple keep at initial condition with the contact module, in this embodiment, initial condition is that second body of rod 19 is located guide way 26, contact 20 is located guide way 27, and guarantee contact 20 for the outstanding setting of the terminal surface of the hook body 13 of keeping away from connecting rod 12, and then when the main couple moved to the steel bar truss, if meet the reinforcement reinforcing bar, can make contact 20 and reinforcement bar contact earlier.
One side of the first body of rod 18 towards connecting rod 12 is provided with spacing arch 21, and when reset spring 22 pulled first body of rod 18 and rotated to certain extent towards connecting rod 12, spacing arch 21 can support and lean on the one side at the first body of rod 18 of orientation at connecting rod 12 to it is spacing to carry out first body of rod 18, avoids first body of rod 18 turned angle too big to lead to contact 20 to deviate from guiding groove 27.
The hoisting structure further comprises a controller, in the embodiment, the controller is a PLC, the controller is in control connection with the telescopic hydraulic cylinder 4, the controller is electrically connected with the proximity switch 17, the controller is in control connection with the driving structure, and the controller is in control connection with the driving motor.
When the prefabricated floor slab hoisting structure for the fabricated building is used, the cross beam 3 moves back and forth between the left rail and the right rail under the action of the driving motor, so that the hoisting platform 5 is positioned right above the prefabricated floor slab, then the controller controls the telescopic hydraulic cylinder 4 to act, so that the hoisting platform 5 moves downwards until the hook body 13 of the main hook is positioned slightly below the height of the upper chord steel bar of the steel bar truss of the prefabricated floor slab, and the height control of the main hook when the main hook moves downwards is the prior art, and is not repeated herein; then the controller controls the driving hydraulic cylinder 9 to act, so that the telescopic rod of the driving hydraulic cylinder 9 drives the main hook and the contact assembly to move towards the upper chord steel bar of the steel bar truss, when the contact plate 20 in the contact assembly touches the reinforcing steel bar of the steel bar truss of the prefabricated floor slab, the contact plate 20 pushes the second rod body 19 to move towards the direction of the first rod body 18, so that the first rod body 18 is driven to rotate around the hinged point, the upper end of the second rod body 19 touches the proximity switch 17, the proximity switch 17 transmits a signal to the controller, the controller controls the driving structure to stop working, so that the main hook stops moving, and the main hook does not continue to perform hooking action any more; if the contact piece 20 in the contact assembly does not contact with the reinforcing steel bars of the steel bar truss of the prefabricated floor slab, the main hook continues to move, and the main hook is hung on the upper chord steel bars of the steel bar truss of the prefabricated floor slab, so that the prefabricated floor slab is hoisted.
In the above embodiment, a return spring is disposed between the connecting rod and the first rod body; a limiting bulge is arranged on one side of the first rod body facing the connecting rod; in other embodiments, reset spring can also not set up, or spacing arch can also not set up, and the size of contact in left and right directions is longer this moment, and when the first body of rod took place to touch with the connecting rod, the contact still was located the guiding groove.
In the above embodiment, the lower end of the first rod body is provided with an adjusting long hole, and one end of the second rod body facing the first rod body is provided with a guide post penetrating through the adjusting long hole and in sliding fit with the adjusting long hole; in other embodiments, the lower end of the first rod is fixedly provided with a guide post, and one end of the second rod facing the first rod is provided with an adjusting long hole.
In the embodiment, the guide rod extending along the left-right direction is fixedly arranged below the hoisting platform, the driving structure is fixed below the guide rod, the transmission block is fixed between the telescopic rod of the driving structure and the main hook, and the top of the transmission block is provided with a U-shaped groove in sliding fit with the guide rod; in other embodiments, the transmission block may not be provided, the telescopic rod of the driving structure is directly and fixedly connected with the main hook, and the top of the main hook is provided with a groove in guide sliding fit with the guide rod.
In the above embodiment, the groove includes a front groove wall, a rear groove wall, and a bottom wall connecting the front groove wall and the rear groove wall, the upper end of the front groove wall is provided with a guide ridge protruding backward, the upper end of the rear groove wall is provided with a guide ridge protruding forward, the guide rod is provided with a slide groove extending in the left-right direction, and the slide groove is in sliding fit with the guide ridge; in other embodiments, the upper end of the front groove wall is provided with a guide groove which is recessed forwards, the upper end of the rear groove wall is provided with a guide groove which is recessed backwards, and the guide rod is provided with a guide ridge which is matched with the guide groove in a sliding manner.
In the above embodiment, the fixing plate is L-shaped, and includes a first plate extending in the front-rear direction and a second plate fixed to the front end of the first plate and extending in the left-right direction, the first plate is fixed to the connecting rod, and the fixing hole is formed in the second plate; in other embodiments, the fixing plate is a flat plate, and one end of the fixing plate facing the connecting rod is fixedly connected with the connecting rod.
In the above embodiment, the middle of the hinge lug is provided with a seam, and the first rod body is arranged in the seam; in other embodiments, the hinge ears may not have any slits.
In the embodiment, the hook units in the two rows of hook assemblies are correspondingly arranged left and right; in other embodiments, the hook units in the two rows of hook assemblies are arranged in a left-right staggered mode.
In the above embodiment, each row of hook assemblies includes five groups of hook units; in other embodiments, each column of hook assemblies includes three sets of hook units; or each row of hook assemblies comprises four groups of hook units.
Claims (10)
1. The utility model provides an assembly type structure precast floor slab hoisting structure, characterized by includes:
supporting a truss: the supporting truss comprises a left truss and a right truss which are arranged at left and right intervals;
a beam: the cross beam is arranged between the left truss and the right truss and can move in the front-back direction relative to the supporting truss;
hoisting the platform: the lifting platform is arranged on the cross beam, and a telescopic structure is arranged between the lifting platform and the cross beam and can be stretched in the vertical direction so as to realize height adjustment of the lifting platform;
two rows of hook assemblies are arranged on the left side and the right side of the hoisting platform, each row of hook assemblies comprises at least three groups of hook units, and the distance between every two adjacent hook units is larger than or smaller than the distance between adjacent intersection points of reinforcing steel bars and upper chord steel bars in the prefabricated floor slab;
the hook unit comprises a driving structure relatively fixed on the hoisting platform and a main hook in transmission connection with the driving structure;
the driving structure comprises a telescopic rod which is telescopic left and right, the main hook is L-shaped, the main hook comprises a connecting rod which extends vertically and a hook body which is fixed at the lower end of the connecting rod, a guide groove which is communicated left and right is formed in the hook body, and a guide groove which is communicated front and back is formed in one end of the hook body, which is far away from the connecting rod;
the upper end of the connecting rod of the main hook is in transmission connection with the telescopic rod;
the connecting rod is fixedly connected with a fixing plate, a front and back through fixing hole is formed in the fixing plate, and a proximity switch is fixed in the fixing hole;
the middle part of one side of the connecting rod, which is back to the hook body, is provided with a hinge lug, the hinge lug is arranged below the fixed plate, and the hinge lug is hinged with a contact component;
the contact assembly comprises a first rod body, a second rod body hinged with the lower end of the first rod body, and a contact piece fixed at one end of the second rod body, which is far away from the first rod body;
the first rod body is hinged with the hinge lug, one end of the second rod body, which is far away from the first rod body, is positioned in the guide groove and is in sliding fit with the guide groove, the contact piece is positioned in the guide groove and is in sliding fit with the guide groove, and the upper end of the first rod body is positioned on one side, back to the connecting rod, of the proximity switch;
the contact piece is arranged in a protruding way relative to the end face of the hook body far away from the connecting rod;
a controller: the controller is electrically connected with the proximity switch and is in control connection with the driving structure.
2. The prefabricated floor slab hoisting structure of an assembly type building as claimed in claim 1, wherein a return spring is provided between the connecting rod and the first rod body; one side of the first rod body facing the connecting rod is provided with a limiting bulge.
3. The assembly type structure for hoisting prefabricated floor slabs as claimed in claim 1 or 2, wherein the lower end of the first rod body is provided with an adjustment long hole, and the end of the second rod body facing the first rod body is provided with a guide post inserted into the adjustment long hole and slidably engaged with the adjustment long hole.
4. The assembly type building precast floor slab hoisting structure according to claim 1 or 2, wherein a guide rod extending in the left-right direction is fixedly arranged below the hoisting platform, the driving structure is fixed below the guide rod, a transmission block is fixed between a telescopic rod of the driving structure and the main hook, and a U-shaped groove matched with the guide rod in a sliding manner is arranged at the top of the transmission block.
5. The prefabricated floor slab hoisting structure of an assembly type building as claimed in claim 4, wherein the groove comprises a front groove wall, a rear groove wall, and a bottom wall connecting the front groove wall and the rear groove wall, the upper end of the front groove wall is provided with a guide ridge protruding backwards, the upper end of the rear groove wall is provided with a guide ridge protruding forwards, the guide bar is provided with a sliding groove extending in the left-right direction, and the sliding groove is in sliding fit with the guide ridge.
6. The prefabricated floor slab hoisting structure of an assembly type building as claimed in claim 1 or 2, wherein the fixing plate is L-shaped and comprises a first plate body extending in a front-rear direction and a second plate body fixed to a front end of the first plate body and extending in a left-right direction, the first plate body is fixed to the connecting rod, and the fixing hole is formed in the second plate body.
7. An assembly type structure for hoisting prefabricated floor slabs as claimed in claim 1 or 2, wherein the middle of the hinge lug is provided with a gap, and the first rod body is arranged in the gap.
8. The prefabricated floor slab hoisting structure of an assembly type building as claimed in claim 1 or 2, wherein the hooking units in the two rows of hooking members are arranged in left-right correspondence.
9. The prefabricated floor slab hoisting structure of an assembly type building as claimed in claim 8, wherein each row of hooking members comprises five groups of hooking units.
10. The prefabricated floor slab hoisting structure of an assembly type building as claimed in claim 1 or 2, wherein the upper part of the left truss is fixedly provided with a left rail extending in the front-rear direction, the upper part of the right truss is fixedly provided with a right rail extending in the front-rear direction, the cross beam is arranged between the left rail and the right rail, the left end of the cross beam is in guiding sliding fit with the left rail, and the right end of the cross beam is in guiding sliding fit with the right rail.
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| CN202110906547.8A CN113682970B (en) | 2021-08-09 | 2021-08-09 | Prefabricated floor hoisting structure of assembled building |
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| CN202110906547.8A CN113682970B (en) | 2021-08-09 | 2021-08-09 | Prefabricated floor hoisting structure of assembled building |
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| JP6042021B1 (en) * | 2016-09-15 | 2016-12-14 | 株式会社富士昭技研 | Floor construction method, lifting jig for floor slab unit, and lifting device for floor slab unit |
| CN106245919A (en) * | 2016-08-30 | 2016-12-21 | 中国建筑第七工程局有限公司 | A kind of assembled architecture Automated assembly platform |
| CN110304521A (en) * | 2019-06-24 | 2019-10-08 | 北京建工一建工程建设有限公司 | Super high-rise building overweight equipment handling apparatus |
| CN111960251A (en) * | 2020-08-28 | 2020-11-20 | 江苏银环新材料科技有限公司 | Steel bar truss hoisting method and steel bar truss hoisting tool thereof |
| CN213112210U (en) * | 2020-08-31 | 2021-05-04 | 中铁六局集团有限公司 | Prefab handling frock |
| CN213356689U (en) * | 2020-09-24 | 2021-06-04 | 威海玉全新型建筑材料股份有限公司 | Lifting appliance for prefabricated laminated plate |
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2021
- 2021-08-09 CN CN202110906547.8A patent/CN113682970B/en active Active
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| CN106245919A (en) * | 2016-08-30 | 2016-12-21 | 中国建筑第七工程局有限公司 | A kind of assembled architecture Automated assembly platform |
| JP6042021B1 (en) * | 2016-09-15 | 2016-12-14 | 株式会社富士昭技研 | Floor construction method, lifting jig for floor slab unit, and lifting device for floor slab unit |
| CN110304521A (en) * | 2019-06-24 | 2019-10-08 | 北京建工一建工程建设有限公司 | Super high-rise building overweight equipment handling apparatus |
| CN111960251A (en) * | 2020-08-28 | 2020-11-20 | 江苏银环新材料科技有限公司 | Steel bar truss hoisting method and steel bar truss hoisting tool thereof |
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| CN113682970B (en) | 2023-08-22 |
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