CN117468625A - Support-free prestressed laminated slab connecting node - Google Patents
Support-free prestressed laminated slab connecting node Download PDFInfo
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- CN117468625A CN117468625A CN202311711296.3A CN202311711296A CN117468625A CN 117468625 A CN117468625 A CN 117468625A CN 202311711296 A CN202311711296 A CN 202311711296A CN 117468625 A CN117468625 A CN 117468625A
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- support
- laminated slab
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- piece
- height
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 40
- 239000010959 steel Substances 0.000 claims abstract description 40
- 239000002131 composite material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 230000008569 process Effects 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 8
- 230000001360 synchronised effect Effects 0.000 abstract description 6
- 230000001960 triggered effect Effects 0.000 abstract description 3
- 239000004567 concrete Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 239000011513 prestressed concrete Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011065 in-situ storage Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/17—Floor structures partly formed in situ
- E04B5/23—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated
- E04B5/26—Floor structures partly formed in situ with stiffening ribs or other beam-like formations wholly or partly prefabricated with filling members between the beams
- E04B5/261—Monolithic filling members
- E04B5/263—Monolithic filling members with a flat lower surface
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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
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention discloses a support-free prestressed laminated slab connecting node which is used for connecting a beam body and a laminated slab, wherein a steel pipe truss is arranged on the laminated slab, and the support-free prestressed laminated slab connecting node comprises: the support rod is arranged on the beam body in a lifting manner, and the upper end of the support rod is provided with a support piece for supporting the steel pipe truss; the height fixing assembly is used for adjusting the height of the supporting rod; and the triggering component triggers the height fixing component to lock so as to fix the height of the supporting rod. According to the invention, the supporting rods and the supporting pieces are arranged, the steel pipe truss on the laminated slab is supported by the supporting pieces, the height of the supporting rods is adjusted by combining the height fixing component, and in the lifting process of the laminated slab, when the steel pipe truss moves down to the upper surface of the laminated beam body, the triggering component can be triggered to lock the height fixing component, so that the height of the supporting rods is fixed, and therefore, the steel pipe truss can be stably supported, namely, the laminated slab is supported at the accurate height, and therefore, the supporting structure is not required to be erected at the bottom of the laminated slab, and the synchronous construction of the laminated slab is promoted.
Description
Technical Field
The invention relates to the technical field of assembly type buildings, in particular to a support-free prestressed laminated slab connecting node.
Background
The prestressed concrete steel pipe truss superimposed sheet is a structural form of combining an assembled floor slab and a cast-in-situ floor slab, wherein a prefabricated concrete sheet is adopted as a permanent template at the bottom, and a cast-in-situ concrete superimposed layer is poured at the upper part. In the prior art, when the prestressed concrete steel pipe truss superimposed sheet is hoisted, a supporting structure is arranged at the lower part in advance, the conventional supporting structure is in a scaffold form, before the conventional supporting structure is arranged, measurement and line drawing positioning operation are required, the supporting structure is placed at a preset point during use, then supporting beams are placed at the tops of the supporting structures, the prestressed concrete steel pipe truss superimposed sheet is placed on the supporting structures, the prestressed concrete steel pipe truss superimposed sheet is supported by the supporting beams, then the next concrete pouring is carried out, and after the poured concrete is solidified, the supporting structure is removed.
Patent document CN115370188A discloses a support device for prestressed concrete steel pipe truss laminate on the day 2022, 11 and 22, and the technical scheme includes: the bottom positioning mechanism comprises a fixed seat and positioning rods, the positioning rods are inserted into the periphery of the fixed seat, a magnetic seat is fixedly arranged at the lower part of the fixed seat, and a plurality of fixed seats and a plurality of positioning rods are arranged in a grid shape. The beneficial effects are that: the conditions of disappearance of positioning and line drawing, inaccurate line drawing and the like are effectively avoided, the installation and the disassembly are easy, the supporting strength is high, the carrying is convenient after the disassembly, and the stability of the supporting mechanism is improved; the lifting assembly is arranged, adopts a worm and gear structure, is convenient to adjust the height, and can achieve the self-locking effect.
However, in the prior art of the above patent, the existing supporting structure is improved, but the existing supporting structure still cannot be separated from the direct support of the laminated slab, and the installation range is large, the erection is often complicated, and the layer-by-layer construction is required, so that a support-free prestressed laminated slab connecting node is needed to solve the above problem.
Disclosure of Invention
The invention aims to provide a support-free prestressed laminated slab connecting node so as to solve the defects in the prior art.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model provides a exempt from prestressing force superimposed sheet connected node of support, it is used for connecting the roof beam body and superimposed sheet, be provided with steel pipe truss on the superimposed sheet, include: the support rod is arranged on the beam body in a lifting manner, and the upper end of the support rod is provided with a support piece for supporting the steel pipe truss; the height fixing assembly is used for adjusting the height of the supporting rod; and the triggering component triggers the height fixing component to lock so as to fix the height of the supporting rod when the laminated slab is lifted and moved down to the upper surface of the laminated beam body.
Preferably, the beam body is fixedly provided with a first bin body, two opposite sides of the first bin body are respectively provided with a second bin body, the support rod movably penetrates through the first bin body, the height fixing component is arranged in the first bin body and connected with the support rod, and the triggering component is arranged in the second bin body.
Preferably, the lower end of the first bin body is provided with a cylinder body, a guide rod is fixedly arranged in the cylinder body, and the lower end of the support rod extends into the cylinder body and is provided with a guide groove matched with the guide rod.
Preferably, the fixed-height assembly comprises a toothed ring rotationally arranged in the first bin body, the toothed ring is sleeved on the supporting rod and rotates to be linked with the lifting of the supporting rod, a flitch is elastically movably arranged in the first bin body, and limiting teeth meshed with the toothed ring are arranged on the flitch.
Preferably, the outer wall of the supporting rod is provided with a spiral groove, the inner wall of the toothed ring is movably provided with a ball, and the ball is movably connected with the spiral groove.
Preferably, the triggering component comprises a triggering piece rotatably arranged in the second bin body, a first state that the free end extends out of the upper surface of the beam body and a second state that the free end is flush with the upper surface of the beam body are arranged in the rotation stroke of the triggering piece, and in the second state of the triggering piece, the flitch is limited at a position close to the toothed ring.
Preferably, one side of the flitch far away from the toothed ring is connected with a movable plate through an elastic piece, a sliding piece is movably connected between the first bin body and the second bin body, one end of the sliding piece is in linkage with the rotation of the trigger piece, the other end of the sliding piece is in linkage with the movement of the movable plate, and in a second state of the trigger piece, the sliding piece drives the movable plate to be kept close to the flitch so as to extrude the elastic piece.
Preferably, a sleeve is connected between the first bin body and the second bin body, and the sliding piece is arranged in a sliding penetrating mode.
Preferably, the second bin body is internally provided with a shifting plate in linkage with the sliding piece in a rotating mode, and in the second state of the triggering piece, the shifting plate is attached to the end portion of the laminated plate.
Preferably, the inner wall of the second bin body is provided with a groove matched with the sliding piece, and the poking plate is attached to the inner wall of the second bin body.
In the technical scheme, the invention has the beneficial effects that:
this exempt from prestressing force superimposed sheet connected node of support is through setting up bracing piece and support piece, through the steel pipe truss on the superimposed sheet of support piece support, combine to decide the altitude mixture control of high subassembly to the bracing piece, in superimposed sheet hoist and mount in-process, when it moves down to laminating roof beam body upper surface, can make trigger the subassembly to trigger in order to fix high subassembly locking, then the altitude mixture control of bracing piece to can realize stably supporting steel pipe truss, supported the superimposed sheet at accurate height promptly, need not set up bearing structure in the superimposed sheet bottom from this, promote to realize multilayer superimposed sheet synchronous construction.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all of the features of the disclosed technology.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a schematic diagram of an overall structure according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a front cross-sectional structure according to an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of the structure shown in FIG. 2A according to an embodiment of the present invention;
FIG. 4 is an enlarged schematic view of the structure shown in FIG. 2B according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of an internal structure according to an embodiment of the present invention;
fig. 6 is an enlarged schematic view of the structure at C in fig. 5 according to an embodiment of the present invention.
Reference numerals illustrate:
1. a beam body; 2. superimposed sheets; 3. steel pipe truss; 4. a support rod; 5. a support; 6. a first bin; 7. a second bin; 8. a cylinder; 9. a guide rod; 10. a guide groove; 11. a toothed ring; 12. pasting a board; 13. limit teeth; 14. a spiral groove; 15. a ball; 16. a trigger; 17. an elastic member; 18. a flap; 19. a sliding member; 20. a sleeve; 21. a poking plate; 22. a groove; 23. a linkage member; 24. a linkage rod; 25. a ring body; 26. a slip groove; 27. a push-pull rod; 28. push-pull groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments, which can be made by one of ordinary skill in the art without the need for inventive faculty, are within the scope of the present disclosure, based on the described embodiments of the present disclosure.
Referring to fig. 1-6, a support-free prestressed laminated slab connecting node provided by an embodiment of the present invention is used for connecting a beam body 1 and a laminated slab 2, and a steel pipe truss 3 is disposed on the laminated slab 2, and includes: the support rod 4 is arranged on the beam body 1 in a lifting manner, and the upper end of the support rod is provided with a support piece 5 for supporting the steel pipe truss 3; a height setting assembly for adjusting the height of the support bar 4; and the triggering component triggers the height fixing component to lock so as to fix the height of the supporting rod 4 when the laminated plate 2 is lifted and moved down to the upper surface of the laminated beam body 1.
Specifically, the beam body 1 and the laminated slab 2 are horizontally arranged, the laminated slab 2 moves to the upper part of the installation position through a lifting structure, and then the laminated slab is lowered and installed; the superimposed sheet 2 is a concrete reinforced bar structure, and is internally provided with prestressed reinforcement, and the direction of the prestressed reinforcement is vertically directed to the beam body 1 with two sides serving as fulcrums; the number of the steel pipe trusses 3 is preferably 2-4, the steel pipe trusses 3 comprise steel pipes and steel bar frames, the steel bar frames support the steel pipes to be suspended above the laminated slab 2 in parallel, the direction of the steel pipes is also vertically directed to the beam body 1 with two sides serving as supporting points, and the length of the steel pipes exceeds the surface range of the laminated slab 2, namely, the end parts of the steel pipes can extend to the upper part of the beam body 1 when the laminated slab 2 is installed; the support rods 4 are vertically arranged at the central line position of the upper surface of the beam body 1, the preferable number of the support rods is consistent with that of the steel pipe trusses 3, and the interval arrangement is consistent with that of the steel pipe trusses 3; the supporting piece 5 is preferably half-sleeve-shaped, can be in a shape of C or U, is consistent with the steel pipe in the axial direction, and can be used for supporting the steel pipe trusses 3 at two sides; the height fixing component can stabilize the height of the support rod 4 which is not stressed, and when the support rod 4 is stressed, the lifting movement of the support rod 4 is not limited; the trigger assembly can lock the height limiting function of the height limiting assembly on the support rod 4 passively, and the height of the support rod 4 is limited. In the technical scheme, in actual use, the supporting rod 4 carries the supporting piece 5 to rise to a high position, the laminated slab 2 is driven by the lifting equipment to move to the upper part of the beam body 1, the steel pipe trusses 3 and the supporting piece 5 are in one-to-one correspondence, then, the laminated slab 2 slowly descends under the driving of the lifting equipment, the steel pipe trusses 3 slowly fall on the supporting piece 5, at the moment, the height-fixing component keeps the function of passively limiting the height of the supporting rod 4, so that the height of the supporting rod 4 descends along with the gravity of the integral structure of the laminated slab 2, when the laminated slab 2 moves downwards to the upper surface of the laminated beam body 1, the triggering component is triggered to lock the height-fixing component, the height of the supporting rod 4 is fixed, and the lifting structure can be detached from the laminated slab 2, so that the steel pipe trusses 3 are stably supported, and the synchronous construction of the laminated slab 2 is promoted without erecting a supporting structure at the bottom of the laminated slab 2; in addition, the automatic adjustment and locking of the height of the support rod 4 are avoided, manual operation is avoided, and construction efficiency is improved.
Compared with the prior art, the support-free prestressed laminated slab connecting node provided by the embodiment of the invention has the advantages that the supporting rods 4 and the supporting pieces 5 are arranged, the steel pipe truss 3 on the laminated slab 2 is supported by the supporting pieces 5, the height of the supporting rods 4 is adjusted by combining the height fixing component, and in the lifting process of the laminated slab 2, when the laminated slab 2 moves down to the upper surface of the attached beam body 1, the height fixing component is triggered to lock the height fixing component, so that the height of the supporting rods 4 is fixed, the steel pipe truss 3 can be stably supported, namely, the laminated slab 2 is supported at the accurate height, and therefore, the support structure is not required to be erected at the bottom of the laminated slab 2, and the synchronous construction of the laminated slab 2 is promoted.
As a preferred technical scheme of the embodiment, a first bin body 6 is fixedly arranged on a beam body 1, two opposite sides of the first bin body 6 are respectively provided with a second bin body 7, a supporting rod 4 movably penetrates through the first bin body 6, a height fixing component is arranged in the first bin body 6 and is connected with the supporting rod 4, a triggering component is arranged in the second bin body 7, the beam body 1 is a prefabricated member, and the first bin body 6 and the second bin body 7 are both embedded in a concrete structure of the beam body 1; the height of the upper surface of the second bin body 7 does not exceed the upper surface of the beam body 1; the second bin body 7 is arranged in a butt joint manner to the side wall of the beam body 1; the supporting rod 4 movably penetrates through the center of the first bin body 6; the triggering component in the second bin 7 may correspond to the underside of the superimposed sheet 2 during lifting.
As a preferred technical scheme of the embodiment, the lower end of the first bin body 6 is provided with a cylinder body 8, a guide rod 9 is fixedly arranged in the cylinder body 8, the lower end of the supporting rod 4 extends into the cylinder body 8 and is provided with a guide groove 10 matched with the guide rod 9, and specifically, the cylinder body 8 is embedded in the beam body 1 along with the first bin body 6; the guide rod 9 is a regular polygon rod, and the guide rod 9 is slidably connected with the guide groove 10, so that the support rod 4 only performs lifting movement, and does not rotate.
As a preferred technical scheme of the embodiment, the height fixing component comprises a toothed ring 11 rotationally arranged on the first bin body 6, the toothed ring 11 is sleeved on the supporting rod 4, the rotation of the toothed ring is linked with the lifting of the supporting rod 4, a flitch 12 is elastically and movably arranged in the first bin body 6, a limiting tooth 13 meshed with the toothed ring 11 is arranged on the flitch 12, and the toothed ring 11 is specifically and rotatably arranged in the first bin body 6; the support rod 4 is preferably cylindrical and is arranged coaxially with the toothed ring 11; the lifting movement of the support rod 4 can link the toothed ring 11 to rotate, namely, a spiral feeding effect can be formed between the support rod 4 and the toothed ring 11; the flitch 12 moves horizontally in the first bin 6 against or away from the toothed ring 11; the elastic force of the flitch 12 forces the flitch 12 to keep close to the toothed ring 11, and when the toothed ring 11 rotates, namely, the support rod 4 is extruded by the limiting teeth 13 in the lifting process, the toothed teeth on the toothed ring 11 pass through the limiting teeth 13 one by one, then the flitch 12 is pushed to be far away once and then close to the toothed ring 11, and when the support rod 4 is not subjected to external force, the self gravity of the flitch 12 cannot force the toothed ring 11 to rotate so as to extrude and pass through the limiting teeth 13, in other words, the elasticity of the flitch 12 forces the limiting teeth 13 to engage with the toothed ring 11 in a packing manner, and then the rotation of the toothed ring 11 is blocked, so that the support rod 4 which is not subjected to external force can keep the height.
As a further preferable technical scheme of the embodiment, the outer wall of the supporting rod 4 is provided with spiral grooves 14, the inner wall of the toothed ring 11 is movably provided with balls 15, the balls 15 are movably connected with the spiral grooves 14, and particularly, the number of the spiral grooves 14 is preferably two, and the circle centers of the spiral grooves are symmetrically arranged; the balls 15 are matched with the spiral grooves 14 one by one; the arrangement of the two groups of spiral grooves 14 and the balls 15 ensures that the transmission between the support rod 4 and the toothed ring 11 is stable and flexible; the inner wall of the toothed ring 11 is provided with a hemispherical groove, and the ball 15 is spherical, one part of the ball is embedded into the hemispherical groove, and the other part of the ball is slidably positioned in the spiral groove 14; the ratio of the pitch of the spiral groove 14 to the diameter of the cylindrical surface where the spiral groove is located is satisfied, and the lifting of the support rod 4 can force the toothed ring 11 to rotate through the spiral groove 14 and the balls 15. In actual use, the lifting movement of the support rod 4 drives the spiral groove 14 to lift, so that the balls 15 move relative to the spiral groove 14, and the balls 15 are forced to drive the toothed ring 11 to rotate in the first bin body 6 because the spiral groove 14 only lifts; while in the case of no rotation of the toothed ring 11, the balls 15 are stationary relative to the helical grooves 14, i.e. the support rod 4 is restricted from remaining at the height.
As a preferred technical solution of this embodiment, the trigger assembly includes a trigger piece 16 rotatably disposed in the second bin 7, a first state in which the free end extends out of the upper surface of the beam 1 and a second state in which the free end is flush with the upper surface of the beam 1 are provided in the rotation stroke of the trigger piece 16, in the second state of the trigger piece 16, the flitch 12 is limited at a position close to the toothed ring 11, specifically, the upper end surface of the second bin 7 and the side end surface of the side wall of the abutting beam 1 are both open, the trigger piece 16 is plate-shaped, the lower end of the trigger piece 16 is hinged in the second bin 7 and disposed near the open side end surface, the upper end of the trigger piece 16 rotates in the outer direction of the second bin 7, and a bending portion in the outer direction of the second bin 7 is provided at the upper end of the trigger piece 16, so that when the trigger piece 16 in the first state begins to be pressed down by the laminated plate 2, the trigger piece 16 automatically generates a tendency to rotate in the outer direction of the second bin 7, that is smoothly switched to the second state; the first state of the trigger piece 16, namely, the state of standing is kept, at this moment, the upper end of the trigger piece 16 stretches out of the upper surface of the beam body 1, and then the trigger piece 16 in the first state can be pressed down by the laminated slab 2 firstly in the process of lowering the laminated slab 2; the second state of the trigger piece 16, namely, the trigger piece rotates and inclines to a certain angle towards the outside of the second bin body 7, at the moment, the highest position of the upper end of the trigger piece 16 is flush with the upper surface of the beam body 1, namely, a small part of the overlapping plate 2 is overlapped on the beam body 1, and the overlapping width of the overlapping plate 2 on the beam body 1 is 10-20mm and cannot be used as a main supporting node; in the second state of the trigger piece 16, the linkage flitch 12 is limited at a position close to the toothed ring 11, namely, the limitation on the rotation of the toothed ring 11 is maintained, and the height of the support rod 4 is locked; in the second state, the triggering piece 16 is not in the second state, the flitch 12 is not limited at the position close to the toothed ring 11, that is, the flitch 12 can still elastically float away from the toothed ring 11, so that the limitation on the rotation of the toothed ring 11 is not maintained, and the height of the supporting rod 4 can still be freely adjusted. In addition, the triggering piece 16 in the second state is inclined to the outer direction of the second bin body 7, namely extends out of the side wall of the beam body 1, and can be supported below the laminated plate 2, so that the laminated plate 2 is prevented from falling down accidentally due to the insufficient width of the upper surface of the joint beam body 1.
As a further preferable technical scheme of the embodiment, a flap 18 is connected to one side of the flitch 12 away from the toothed ring 11 through an elastic member 17, a sliding member 19 is movably connected between the first bin 6 and the second bin 7, one end of the sliding member 19 is linked with the rotation of the trigger member 16, the other end of the sliding member 19 is linked with the movement of the flap 18, in the second state of the trigger member 16, the sliding member 19 drives the flap 18 to be kept close to the flitch 12 so as to squeeze the elastic member 17, specifically, the flap 18 and the flitch 12 are parallel to each other, the elastic member 17 is arranged between the flitch 12 and the flap 18, and the flitch 12 and the flap 18 are prevented from approaching each other; the elastic member 17 may preferably be a spring; the movement trigger piece 16 of the sliding piece 19 is linked with the movement of the movable plate 18, namely the rotation of the trigger piece 16 is linked with the movement of the movable plate 18; preferably, the first bin body 6 is rotatably provided with a linkage piece 23, the rotation position of the linkage piece 23 is arranged in the middle, both ends of the linkage piece 23 are provided with a linkage rod 24, one side of the movable plate 18 away from the elastic piece 17 is provided with a ring body 25 sleeved with the linkage rod 24, and the sliding piece 19 is provided with a sliding groove 26 matched with the linkage rod 24; the linkage piece 23 rotates to drive the movable plate 18 to approach or depart from the sliding piece 19 through the linkage rod 24; the sliding piece 19 is provided with a push-pull rod 27, the triggering piece 16 is provided with a push-pull groove 28 movably connected with the push-pull rod 27, and the horizontal movement of the sliding piece 19 drives the push-pull rod 27 to move relatively in the push-pull groove 28, so that the triggering piece 16 is driven to rotate.
The following describes the switching process between the first state and the second state of the trigger 16: firstly, before the laminated slab 2 is lifted and installed, the supporting rod 4 is pulled to rise, so that the supporting rod 4 carries the supporting piece 5 to rise to a high position, and the position is kept under the action of the fixed-height component, the trigger piece 16 is not pressed down, under the action that the elastic piece 17 keeps pushing the flitch 12 and the movable plate 18 to be far away from each other, the sliding piece 19 keeps a position close to the movable plate 18 through the linkage of the linkage piece 23 and the linkage rod 24, and then the other end of the sliding piece 19 drives the trigger piece 16 to be kept in a first state through the push-pull rod 27 and the push-pull groove 28. Then, the superimposed sheet 2 is moved to the upper part of the beam body 1 under the driving of the lifting device, the steel pipe trusses 3 are in one-to-one correspondence with the supporting pieces 5, then the superimposed sheet 2 slowly descends under the driving of the lifting device, the steel pipe trusses 3 slowly fall on the supporting pieces 5, at this time, the height-fixing component keeps the function of passively limiting the height of the supporting rods 4 due to the fact that the triggering piece 16 is in the first state, then the supporting rods 4 descend along with the height of the supporting rods 4 under the gravity of the integral structure of the superimposed sheet 2, the supporting rods 4 drive the spiral grooves 14 to descend, the spiral grooves 14 and the balls 15 perform spiral feeding action to drive the toothed rings 11 to rotate, and the toothed rings 11 rotate due to the fact that the flitch 12 and the movable plate 18 keep far away, and the elastic pieces 17 have sufficient compression space, so that upper teeth and the limiting teeth 13 of the toothed rings are extruded one by one, namely the supporting rods 4 move downwards smoothly. When the laminated plate 2 moves down to a certain height to start to press the trigger piece 16 in the first state, the trigger piece 16 is forced to rotate outwards of the second bin body 7, namely, the trigger piece 16 is switched from the first state to the second state, at this time, the rotation of the trigger piece 16 drives the sliding piece 19 to be away from the movable plate 18 through the push-pull rod 27 and the push-pull groove 28, and under the action of the linkage piece 23 and the linkage rod 24, the movable plate 18 is relatively away from the sliding piece 19, and then the movable plate 18 approaches the laminated plate 12 to press the elastic piece 17, so that the compressible range of the elastic piece 17 is gradually reduced. When the laminated slab 2 moves down to the upper surface of the laminated beam body 1, namely the trigger piece 16 is switched to a second state under the compression of the laminated slab 2, at the moment, according to the process, the compression degree of the elastic piece 17 is forced to be maximum, the laminated slab 12 is limited at the position of the laminated toothed ring 11, the rotation of the toothed ring 11 is completely limited, the spiral groove 14 and the ball 15 cannot continue to perform spiral feeding action, namely the height of the supporting rod 4 is locked, at the moment, the lifting structure can be detached from the laminated slab 2, the supporting rod 4 can stably support the steel pipe truss 3 at the accurate height, a supporting structure is not required to be set at the bottom of the laminated slab 2, and the synchronous construction of the laminated slab 2 is promoted; in addition, the height of the supporting rod 4 is automatically adjusted and locked, so that manual operation is avoided, and the construction efficiency is improved.
As a still further preferable technical scheme of this embodiment, a sleeve 20 is connected between the first bin body 6 and the second bin body 7, a sliding member 19 is slidably disposed through the sleeve 20, specifically, the sleeve 20 connects the first bin body 6 and the second bin body 7 to form a whole, and the two are embedded in the concrete body of the beam body 1 together, so as to ensure that the first bin body 6, the second bin body 7 and the sleeve 20 form independent spaces for moving internal parts.
In another embodiment of the present invention, the second bin 7 is rotatably provided with a pulling plate 21 linked with the sliding member 19, and in the second state of the trigger member 16, the pulling plate 21 is attached to the end of the laminated plate 2, specifically, in the first state of the trigger member 16, the pulling plate 21 is in a preparation position of tilting toward the inner side of the second bin 7, and in the second state of the trigger member 16, the pulling plate 21 is raised upward to attach to the end of the laminated plate 2; the shifting plate 21 and the sliding piece 19 are also in linkage with the push-pull groove 28 through the push-pull rod 27, the sliding piece 19 is far away from the movable plate 18, the shifting plate 21 can be driven to stand up to be attached to the end part of the laminated plate 2, and the sliding piece 19 is close to the movable plate 18, so that the shifting plate 21 is driven to topple towards the inner side of the second bin 7 to be in a preparation position. In practical use, when the laminated slab 2 is lifted to the upper surface of the two side beam bodies 1, a certain width is left at the end parts to form lap joint, and the width of the part is usually narrower, so that repeated check is needed in the lifting and lowering process of the laminated slab 2, and the problem of troublesome installation is brought about, therefore, the setting of the shifting plate 21 can drive the sliding piece 19 to move in the process of lowering the triggering piece 16 of the laminated slab 2, the sliding piece 19 can drive the shifting plate 21 to rotate from a preparation position to a standing state, and therefore, when the setting width of one side of the laminated slab 2 and the side of the beam body 1 is larger, namely, when the other side is smaller, the shifting plate 21 in the process of switching to the standing state can transversely push the laminated slab 2, and the width of the laminated slab 2, which is overlapped with the two side beam bodies 1, is even and proper when the two side of the laminated slab 2 is finally attached to the upper surface of the beam body 1, is ensured under the synchronous action of the two side shifting plates 21; wherein, because the superimposed sheet 2 is in a suspended state, the force required by the pulling plate 21 to realize the lateral pushing of the superimposed sheet 2 is generally small, so the above structure can be satisfied.
As the preferred technical scheme of this embodiment, the inner wall of the second bin body 7 is provided with the recess 22 matched with the sliding piece 19, the shifting plate 21 is attached to the inner wall of the second bin body 7, specifically, the sliding piece 19 is connected with the triggering piece 16 and one end of the shifting plate 21 is provided in a fork shape, the end of the triggering piece 16 is slidably connected in the recess 22, so as to avoid protruding into the second bin body 7, and then the shifting plate 21 is attached to the inner wall of the second bin body 7, thereby, when the shifting plate 21 stands up to attach to the end part of the laminated plate 2, the shifting plate 21 also cuts off the inner space of the second bin body 7, so that the concrete cast-in-place performed on the upper side of the beam body 1 is not leaked outside due to the arrangement of the second bin body 7, and the structural tightness is ensured.
While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The utility model provides a exempt from prestressing force superimposed sheet connected node of support, its is used for connecting roof beam body (1) and superimposed sheet (2), be provided with steel pipe truss (3) on superimposed sheet (2), its characterized in that includes:
the support rod (4) is arranged on the beam body (1) in a lifting manner, and the upper end of the support rod is provided with a support piece (5) for supporting the steel pipe truss (3);
the height fixing assembly is used for adjusting the height of the supporting rod (4);
and the triggering component triggers the height fixing component to lock so as to fix the height of the supporting rod (4) when the superimposed sheet (2) is lifted and moved down to the upper surface of the attaching beam body (1).
2. The support-free prestressed laminated slab connecting node according to claim 1, wherein a first bin body (6) is fixedly arranged on the beam body (1), two opposite sides of the first bin body (6) are respectively provided with a second bin body (7), the supporting rod (4) movably penetrates through the first bin body (6) to be arranged, the height fixing component is arranged in the first bin body (6) and is connected with the supporting rod (4), and the triggering component is arranged in the second bin body (7).
3. The support-free prestressed laminated slab connecting node according to claim 2, wherein a cylinder (8) is arranged at the lower end of the first bin body (6), a guide rod (9) is fixedly arranged in the cylinder (8), and the lower end of the supporting rod (4) extends into the cylinder (8) and is provided with a guide groove (10) matched with the guide rod (9).
4. The support-free prestressed laminated slab connecting node according to claim 2, wherein the height fixing component comprises a toothed ring (11) rotationally arranged on the first bin body (6), the toothed ring (11) is sleeved on the supporting rod (4) and rotates to be in lifting linkage with the supporting rod (4), a flitch (12) is elastically movably arranged in the first bin body (6), and limiting teeth (13) meshed with the toothed ring (11) are arranged on the flitch (12).
5. The support-free prestressed laminated slab connecting node according to claim 4, wherein a spiral groove (14) is formed in the outer wall of the supporting rod (4), balls (15) are movably arranged on the inner wall of the toothed ring (11), and the balls (15) are movably connected with the spiral groove (14).
6. The support-free prestressed composite slab connecting joint according to claim 4, wherein the trigger assembly comprises a trigger member (16) rotatably arranged in the second bin (7), the trigger member (16) has a first state in which the free end extends out of the upper surface of the beam body (1) and a second state in which the free end is flush with the upper surface of the beam body (1) in a rotational stroke, and in the second state of the trigger member (16), the veneer (12) is limited to a position close to the toothed ring (11).
7. The support-free prestressed laminated slab connecting node according to claim 6, wherein one side of the flitch (12) far away from the toothed ring (11) is connected with a movable plate (18) through an elastic piece (17), a sliding piece (19) is movably connected between the first bin (6) and the second bin (7), one end of the sliding piece (19) is in rotation linkage with the trigger piece (16), the other end of the sliding piece is in movable linkage with the movable plate (18), and in a second state of the trigger piece (16), the sliding piece (19) drives the movable plate (18) to be kept close to the flitch (12) so as to squeeze the elastic piece (17).
8. The support-free prestressed laminated slab connecting node according to claim 7, wherein a sleeve (20) is connected between the first bin (6) and the second bin (7), and the sliding member (19) is arranged to slide through the sleeve (20).
9. The support-free prestressed laminated slab connecting node according to claim 7, wherein a pulling plate (21) linked with the sliding piece (19) is rotationally arranged in the second bin (7), and in the second state of the triggering piece (16), the pulling plate (21) is attached to the end part of the laminated slab (2).
10. The support-free prestressed laminated slab connecting node according to claim 9, wherein the inner wall of the second bin (7) is provided with a groove (22) matched with the sliding piece (19), and the shifting plate (21) is attached to the inner wall of the second bin (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311711296.3A CN117468625A (en) | 2023-12-13 | 2023-12-13 | Support-free prestressed laminated slab connecting node |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311711296.3A CN117468625A (en) | 2023-12-13 | 2023-12-13 | Support-free prestressed laminated slab connecting node |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117468625A true CN117468625A (en) | 2024-01-30 |
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ID=89633171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311711296.3A Pending CN117468625A (en) | 2023-12-13 | 2023-12-13 | Support-free prestressed laminated slab connecting node |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117468625A (en) |
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2023
- 2023-12-13 CN CN202311711296.3A patent/CN117468625A/en active Pending
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