CN214658791U - Early-dismantling-head and early-dismantling type floor support system - Google Patents

Abstract

The utility model discloses an early-dismantling head and early-dismantling type floor support system, wherein the early-dismantling head comprises a height adjusting screw rod and a late-dismantling top support, and an early-dismantling tray is arranged on the late-dismantling top support; the early-dismantling tray forms an early-dismantling structure through an early-dismantling component; the late-dismantling jacking comprises a late-dismantling vertical plate and a late-dismantling top plate, the late-dismantling top plate is fixed above the late-dismantling vertical plate, and the late-dismantling vertical plate is provided with a vertically extending strip hole; the early-dismantling tray surrounds the periphery of the late-dismantling vertical plate, and a lifting guide rail pair structure is formed between the early-dismantling tray and the late-dismantling vertical plate; the early-dismantling tray symmetrically extends outwards along the thickness direction of the late-dismantling vertical plate, and the two symmetrical extending parts form an early-dismantling bearing part. The early-dismantling type floor support system is provided with the early-dismantling head, and a support frame part rod of the system is formed by a disk-buckling type scaffold. The utility model has the advantages that the unbalance loading can be reduced, the main beam is prevented from moving, and the corresponding potential safety hazard is reduced or eliminated; the support system has the early head of tearing open to adopt the support frame of dish knot formula scaffold frame, further improve the system and take and tear efficiency open.

Description

Early-dismantling-head and early-dismantling type floor support system

Technical Field

The utility model relates to a construction formwork support structure, in particular to early type floor support system is torn open to early type of tearing open.

Background

When the concrete of the building or the structure is integrally cast, the concrete is finished by erecting a template through a supporting system. In order to reduce the construction cost, the increase of the turnover rate of the support body member is one of the effective measures. For this reason, a support system with an early-dismantling function is commonly used in construction practice, wherein the early-dismantling is usually performed by an early-dismantling head or an early-dismantling mechanism to realize the early-dismantling of a support beam in the system, and then the early-dismantling of a formwork is completed. The existing early-dismantling mechanism is more in structural form, but most of the existing early-dismantling mechanisms are provided with a main beam by erecting one side of an early-dismantling tray, and a support upright post of the support system bears eccentric load, so that the stability is poor, and an outward-cantilever part is difficult to arrange on the main beam. In order to ensure the reliability of formwork support, usually, only the support columns and the early-dismantling heads close to the wall are arranged in a mode close to the wall, so that the construction and early-dismantling operation space of the support system are limited, the convenience of operation is severely limited, and the construction efficiency of the support system and the formwork is further influenced. Although a part of early-dismantling support systems with main beams symmetrically erected on two sides of a tray in the prior art can enable the main beams to have longer overhanging sections, the two main beams are far away from the center of a pillar due to the fact that the upright post between the two main beams is of a round tubular structure, and the main beams can bear obvious unbalance loading in the process of erecting and dismantling the main beams in advance and then, so that potential safety hazards in the erecting and dismantling process are formed; meanwhile, as the anti-shifting structure for preventing the main beam from shifting is not arranged between the main beam and the stand column, the potential safety hazard that the secondary beam falls after the main beam shifts exists, or the potential support effect reduction hazard that the strength of the support system structure is reduced due to the shifting of the main beam exists. For this reason, further improvements to existing support systems are needed.

Disclosure of Invention

The utility model discloses an in the first purpose is to current two girder template support systems, the girder has the not enough of drunkenness, provides one kind and early tears the head open to when being used for component template support system, the girder can tear the head early relatively and not drunkenness open, in order to eliminate the hidden danger that the secondary beam drops or the supporting effect descends. A second object of the present invention is to provide an early-dismantling type floor support system with the early-dismantling head, so as to ensure safe use and obtain reliable support effect.

In order to achieve the first objective, the present invention adopts the following technical solution.

An early-dismantling head comprises a late-dismantling jacking bracket fixedly connected to the top end of a height adjusting screw rod, wherein an early-dismantling tray is arranged on the late-dismantling jacking bracket; the early-dismantling tray forms an early-dismantling structure for lifting the early-dismantling jacking through the early-dismantling component; the late-dismantling jacking comprises a late-dismantling vertical plate and a late-dismantling top plate, the late-dismantling top plate is fixed above the late-dismantling vertical plate, and a vertically extending long hole is formed in the late-dismantling vertical plate and penetrates through the thickness of the late-dismantling vertical plate; the early-dismantling tray surrounds the periphery of the late-dismantling vertical plate, and a lifting guide rail pair structure for lifting the early-dismantling tray is formed between the early-dismantling tray and the late-dismantling vertical plate; the early-dismantling tray symmetrically extends outwards along the thickness direction of the late-dismantling vertical plate, and the two symmetrical extending parts form an early-dismantling bearing part.

By adopting the scheme, the utility model discloses, early-dismantling tray has two bearing parts that are located late-dismantling riser thickness direction both sides, when being used for constructing the support system, sets up two girder that set up side by side through two bearing parts, because the thickness of late-dismantling the riser can be showing and be less than the circular post or the pipe diameter of the stand of late-dismantling in the prior art, makes two girder apart closely, is closer to the support stand center, can obviously reduce eccentric load, reduces the potential safety hazard that the unbalance loading leads to; meanwhile, the late-dismantling vertical plate is provided with a long hole penetrating through the thickness of the late-dismantling vertical plate, and the two main beams can be connected together through a pin shaft or a bolt penetrating through the long hole so as to lift along the late-dismantling vertical plate by utilizing the long hole and effectively prevent the main beams from axially moving, thereby eliminating the potential safety hazard of falling of the secondary beams caused by the main beam moving, eliminating the potential hazards of reduced supporting strength and reduced supporting effect; the retaining wall can be arranged at the outer end of the early-dismantling bearing part so as to effectively prevent the main beam from sliding outwards or tipping, and improve the safety and the supporting stability. The symmetrical structure of two girders still does benefit to the girder and early tears overhead formation in early tearing open and hang out the outrigger structure of tearing the tray early open to the increase is close to the distance between the support column of wall and the wall body, and then increases the system and takes open, and early tears open the operating space of operation, and the corresponding convenient operation nature that improves, improves the system and takes open and early tear operating efficiency open. In this scheme, tear down the riser slowly and support each other with high adjusting screw and lean on the welding together. When the height adjusting screw rod adopts an external thread pipe, preferably, the late-dismantling vertical plate is provided with an insertion section inserted into the external thread pipe, and the insertion section is tightly matched and connected with the pipe hole.

Preferably, the early-dismantling member comprises an early-dismantling nut which is screwed on the height adjusting screw rod and forms a support for the early-dismantling tray; the early-dismantling tray comprises a tray body and a lower extension cylinder which are fixedly connected with each other, and the tray body is plate-shaped, is positioned at the upper end of the lower extension cylinder and is provided with the early-dismantling bearing part; the lower extension cylinder is sleeved on the periphery of the height adjusting screw rod, and a groove for avoiding the late-dismantling vertical plate is formed in the pipe wall of the lower extension cylinder. With early the lift of tearing the tray open through rotating early nut of tearing open realization to through the early nut of tearing open that an extension section of thick bamboo makes the tray body of great size pass through to less holding surface down gradually, improve the structural stability who early tears the tray open, and the cooperation section length of extension section of thick bamboo increase tray body and high adjusting screw down improves the ride comfort that the tray goes up and down early to tear open.

Preferably, the lifting guide rail pair structure comprises a guide groove arranged on the early-dismantling tray, and the guide groove is adaptive to the cross section shape of the late-dismantling vertical plate; the slot on the lower extension cylinder is communicated with the guide slot. The cross-sectional shape of dismantling the riser with direct utilization later forms lift guide structure to effectively simplify the structure, and make full use of dismantles the two cooperation structure size of riser external structure size increase later, increases the lift stability of dismantling the tray earlier, does benefit to increase of service life.

Preferably, two ends of the early-dismantling tray are provided with retaining walls extending upwards; and a reinforcing inclined strut is arranged between the tray body and the lower extension cylinder. The retaining wall can be arranged on the tray body; the reinforced inclined strut can effectively enhance the bearing capacity of the tray body, and loads the supporting load on the axis closer to the supporting column, so that the stability of the system is improved.

Preferably, the late-dismantling jacking is provided with a height limiting structure, and the height limiting structure is used for limiting the upper limit height of the third component loaded on the tray. When the member supports the system, the third member girder constitutes, through limit structure restriction girder extreme position that rises, need not to measure the top surface of tearing down the roof late and girder top surface size, can make and carry on the girder to be located the coplanar by the secondary beam top surface of same specification section bar, and with the top surface parallel and level of tearing down the roof late under the support state of forming the support to the building bottom template, in order to form smooth bearing structure, can effectively improve and set up efficiency.

Preferably, the late-dismantling top plate is fixed to the top end of the late-dismantling vertical plate, limiting plates are arranged on two sides of the late-dismantling top plate, the two limiting plates and the late-dismantling vertical plate form a cross shape, and the limiting plates form the height limiting structure; or, an integrated or welded transition cylinder is formed on the late dismantling top plate, the late dismantling vertical plate is connected with the late dismantling top plate through the transition cylinder, a notch for accommodating the transition cylinder is formed in the late dismantling vertical plate, and the cylinder wall of the transition cylinder in the thickness direction of the late dismantling vertical plate is suspended to form the height limiting structure. The limit structure with various structural forms enables the system structure to be diversified, and the limit structure is convenient to select according to the principle of reducing the comprehensive cost according to the actual production conditions. In the scheme that the transition cylinder is integrally formed on the late dismantling top plate, the late dismantling top plate and the transition cylinder can be integrally formed through casting or forging; in addition, the upper ends of the late-dismantling risers can be arranged to be in a shape of a Chinese character 'shan', the middle parts of the Chinese character 'shan' are inserted into the inner holes of the transition cylinders, and the inserted middle parts and the inner holes of the transition cylinders form tight fit so as to further enhance the connection strength of the two.

Preferably, the early-dismantling member comprises a locking and unlocking slide block and an early-dismantling support, and the locking and unlocking slide block forms a support for the early-dismantling tray; the locking and unlocking slide block is provided with a first sliding groove and a second sliding groove, the first sliding groove and the second sliding groove enable the locking and unlocking slide block to form a frame-shaped structure with a cross-shaped hollowed middle part, the first sliding groove is used for enabling the locking and unlocking slide block and the late-dismantling vertical plate to form a sliding fit connection relation, and the length of the first sliding groove is larger than the width of the late-dismantling vertical plate; the early-dismantling support is fixedly connected to the height adjusting screw rod, and an early-dismantling convex column is arranged on the early-dismantling support; the second sliding groove is provided with a space for accommodating the early-dismantling convex column to extend into. The early-dismantling tray is supported on the locking and unlocking slide block; when the early-dismantling support is used for constructing a support system, the early-dismantling tray is positioned at the upper limit position when the locking and unlocking slide block is supported on the early-dismantling convex column, and the support state of the floor template is formed by the main beam and the secondary beam; the sliding block is moved by external force knocking until the early-dismantling convex column is aligned with the second sliding groove, the early-dismantling convex column is inserted into the second sliding groove, the locking and unlocking sliding block falls, the early-dismantling tray descends along with the locking and unlocking sliding block, and then the template supported by the main beam and the secondary beam is in an early-dismantling state. In order to reduce the impact when the sliding block falls, at least one of the contact surfaces of the sliding block and the early-dismantling convex column is preferably provided with a guide inclined plane so as to form sliding block falling buffer; in order to enhance the strength of the unlocking knocking portion, it is preferable that a reinforcing protrusion is provided in the thickness direction of the unlocking knocking end. When the early dismantling head is used for constructing a support system, the locking and unlocking slide block is used for erecting a main beam and a secondary beam under the state of being supported on the early dismantling convex column; preferably, a safety measure is taken through filling or setting of a component, and a gap between the length direction of the first sliding chute and the corresponding side of the late-dismantling vertical plate is eliminated, so that the locking and unlocking sliding block is prevented from accidentally sliding, and the erection safety is ensured; when unlocking, firstly, the filler is taken out or the safety measure is relieved, and then the sliding block is knocked to implement early disassembly.

Further preferably, the late-dismantling top plate is detachably fixedly connected to the late-dismantling vertical plate. So as to form locking and unblock slider, early tear the tray open and tear the roof late open, from tearing open the order of riser top installation in proper order late, ensure early first combination process's of tearing open maneuverability. Preferably, the late-dismantling top plate is detachably and fixedly connected with the late-dismantling vertical plate through two connecting lugs, and the two connecting lugs are clamped on the late-dismantling vertical plate; the engaging lug is equipped with the strengthening rib with tearing down slowly between the roof to form and tear down the roof late and tear down the stable fixed connection structure of riser late, and usable strengthening rib forms the crooked, restriction of tumbling of girder, improves the stability of support system.

In order to achieve the second objective, the present invention adopts the following technical solutions.

A early-dismantling type floor support system comprises a support frame consisting of at least four support columns in an even number, wherein the support columns are respectively arranged at four corners of a corresponding rectangle, early-dismantling heads for realizing the first purpose are arranged on the support columns, and height adjusting nuts are screwed on height adjusting screws of the early-dismantling heads; the early-dismantling head is provided with two main beams through two bearing parts of the early-dismantling tray, and a pin shaft or a bolt penetrating through the strip hole is connected between the two main beams.

Adopt aforementioned scheme the utility model discloses, through set up early the head of tearing open on the support column, early tear the head open including early the part of tearing open and tear the part open late, early tear open and set up the girder on the tray, set up the secondary beam on the girder, the last plane of secondary beam and tear the structure open late the roof and form the support to the template jointly late. After the floor reaches a certain strength after being poured and the main beam, the secondary beam and the corresponding template can be disassembled, the early disassembly is carried out as required so as to form the subsequent support of the multi-floor only by the late disassembly part. The early-dismantling tray is provided with two bearing parts positioned at two sides of the thickness direction of the late-dismantling vertical plate, when the early-dismantling tray is used for constructing a support system, two main beams arranged side by side are erected through the two bearing parts, and the thickness of the late-dismantling vertical plate can be obviously smaller than the diameter of a circular column or a pipe of the late-dismantling vertical column in the prior art, so that the two main beams are closer to each other and are closer to the center of the support vertical column, the eccentric load can be obviously reduced, and the potential safety hazard caused by unbalance loading is reduced; simultaneously, owing to be equipped with on the riser of tearing slowly and run through its thickness rectangular hole, two with girder accessible pass the round pin axle or bolted connection in rectangular hole together to utilize rectangular hole along tearing the riser lift late, and prevent effectively that the girder axial float, thereby eliminate the potential safety hazard that falls because of the secondary beam that the girder float brought, and eliminate and support the reduction of intensity, the hidden danger that the supporting effect descends. The symmetrical structure of two girders still does benefit to the girder and early tears overhead formation in early tearing open and hang out the outrigger structure of tearing the tray early open to the increase is close to the distance between the support column of wall and the wall body, and then increases the system and takes open, and early tears open the operating space of operation, and the corresponding convenient operation nature that improves, improves the system and takes open and early tear operating efficiency open. In the scheme, the main beam and the secondary beam can adopt C-shaped light steel profiles disclosed in Chinese patent publication No. CN207934450U, No. 10/02/2018, or rectangular pipe profiles with continuously distributed round holes on the side walls, or improved C-shaped light steel profiles with the cross sections being the same as the C-shaped light steel profiles and the continuously distributed round holes on the side walls. When the section bar is adopted, when the main beam needs to be lengthened in the length direction, the U-shaped lengthening piece is adopted to form a three-side surrounding type lengthening component, and lengthening is carried out through the threaded fastener. In the scheme, when the locking and unlocking slide block and the early-dismantling support are adopted to form the early-dismantling head of the early-dismantling component, preferably, a safety measure of filling or setting the component is adopted to eliminate a gap between the length direction of the first sliding groove and the corresponding side of the late-dismantling vertical plate so as to prevent the locking and unlocking slide block from accidentally sliding and ensure the erection safety; when unlocking, firstly, the filler is taken out or the safety measure is relieved, and then the sliding block is knocked to implement early disassembly.

Preferably, the support frame is formed by a coil-buckle scaffold. With the efficient advantage of tearing open of taking of make full use of dish knot formula scaffold frame, improve and take and tear open efficiency, reduce construction cost, improve the efficiency of construction.

The utility model has the advantages that the early head disassembly can reduce the unbalance loading and prevent the axial movement of the girder; so as to reduce or eliminate the potential safety hazard caused by unbalance loading and axial movement of the main beam; meanwhile, the support system can be ensured to form a symmetrical structure of double main beams, and an outrigger structure for hanging out the early-dismantling tray is formed on the early-dismantling head of the main beam, so that the distance between a support column close to the wall surface and the wall body is increased, the operation space for system dismantling and early-dismantling operation is increased, the operation convenience is correspondingly improved, and the system dismantling and early-dismantling operation efficiency is improved; the support system has aforementioned early head of tearing open to further constitute the support frame through dish knot formula scaffold frame, improve and take and tear open efficiency, reduce construction cost, improve the efficiency of construction.

Drawings

Fig. 1 is a schematic axonometric view of an early-dismantling head structure of embodiment 1 of the present invention.

Fig. 2 is a schematic perspective view of the early-dismantling pallet in the early-dismantling head according to embodiment 1 of the present invention.

Fig. 3 is a top view of fig. 2 in the present invention.

Fig. 4 is a schematic axonometric view of the early dismantling head structure of the embodiment 2 of the present invention.

Fig. 5 is a schematic perspective view of an early-dismantling structure according to embodiment 3 of the present invention, showing a locked state.

Fig. 6 is a schematic perspective view of the early-dismantling tray in embodiment 3 of the present invention.

Fig. 7 is a structural schematic axonometric view of another visual angle of the early-dismantling tray in embodiment 3 of the invention.

Fig. 8 is a schematic perspective view of a locking and unlocking slider in embodiment 3 of the present invention.

Fig. 9 is a structural schematic axonometric view of another viewing angle of the locking and unlocking slider in embodiment 3 of the present invention.

Fig. 10 is a schematic perspective view of a part of the structure of an early-dismantling head according to embodiment 3 of the present invention.

Fig. 11 is a schematic axonometric view of the early-dismantling structure of embodiment 3 of the present invention, which shows the unlocking state.

Fig. 12 is a schematic view of a part of the structure of the middle early dismantling type support system of the present invention.

Fig. 13 is an enlarged view of a portion a in fig. 12 according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings, but the present invention is not limited thereto.

In the embodiment 1, referring to fig. 1, 2 and 3, an early-dismantling head comprises a late-dismantling jacking bracket 2 fixedly connected to the top end of a height adjusting screw 1, wherein an early-dismantling tray 3 is arranged on the late-dismantling jacking bracket 2; the early-dismantling tray 3 forms an early-dismantling structure for lifting the late-dismantling jacking 2 through an early-dismantling component; the late-dismantling jacking 2 comprises a late-dismantling vertical plate 21 and a late-dismantling top plate 22, the late-dismantling top plate 22 is fixed above the late-dismantling vertical plate 21, a vertically extending long hole 21a is formed in the late-dismantling vertical plate 21, and the long hole 21a penetrates through the thickness of the late-dismantling vertical plate 21; the early-dismantling tray 3 surrounds the periphery of the late-dismantling vertical plate 21, and a lifting guide rail pair structure for lifting the early-dismantling tray 3 is formed between the early-dismantling tray 3 and the late-dismantling vertical plate 21; the early-dismantling tray 3 symmetrically extends outwards along the thickness direction of the late-dismantling vertical plate 21, the two symmetrical extending parts form an early-dismantling bearing part, and the outer end of the early-dismantling bearing part is provided with an upwards extending retaining wall 3 b; the late-release risers 21 and the height adjustment screws 1 are welded to each other against each other. The height adjusting screw 1 is of a threaded pipe structure, the late-dismantling vertical plate 21 is provided with an insertion section inserted into the external threaded pipe, and the insertion section is connected with the pipe hole in a tight fit mode.

Wherein the early-dismantling component comprises an early-dismantling nut 5, the early-dismantling nut 5 is screwed on the height adjusting screw rod 1 and forms a support for the early-dismantling tray 3; the early-dismantling tray 3 comprises a tray body 31 and a lower extension cylinder 32 which are fixedly connected with each other, wherein the tray body 31 is plate-shaped, is positioned at the upper end of the lower extension cylinder 32 and is provided with the early-dismantling bearing part; the lower extension cylinder 32 is sleeved on the periphery of the height adjusting screw rod 1, and a groove 32a avoiding the late-dismantling vertical plate 21 is formed in the pipe wall of the lower extension cylinder 32. The lifting guide rail pair structure comprises a guide groove 3a arranged on the early-dismantling tray 3, the guide groove 3a penetrates through the tray body 31, and the guide groove 3a is adaptive to the cross section shape of the late-dismantling vertical plate 21; the slot on the lower extension cylinder 32 communicates with the guide groove 3 a. The retaining wall 3b is provided on the tray body 31, and a reinforcing brace 33 is provided between the tray body 31 and the lower extension cylinder 32.

In addition, a height limiting structure is arranged on the late-dismantling jacking 2 and used for limiting the upper limit height of a third component borne on the tray. Specifically, a transition cylinder 24 is welded and fixed on the late-dismantling top plate 22, the late-dismantling vertical plate 21 is connected with the late-dismantling top plate 22 through the transition cylinder 24, a notch for accommodating the transition cylinder 24 is formed in the late-dismantling vertical plate 21, and a cylinder wall of the transition cylinder 24 in the thickness direction of the late-dismantling vertical plate 21 is hung to form the height limiting structure.

In this embodiment, the late-dismantling top plate 22 and the transition cylinder 24 may be formed as a single-piece structure by casting or forging.

In this embodiment, the upper ends of the late-dismantling risers 21 may be arranged in a "hill" shape, the middle part of the hill is inserted into the inner hole of the transition cylinder 24, and the inserted middle part forms a tight fit with the inner hole of the transition cylinder 24.

Embodiment 2, see fig. 4, tear roof 22 welded fastening late and tear the top of dismantling riser 21 late, tear roof 22 both sides late and be equipped with limiting plate 23, two limiting plates 23 with tear riser 21 late and form the cross, limiting plate 23 constitutes height limit structure.

The rest of the structure of this embodiment is the same as embodiment 1, and is not described herein again.

Embodiment 3, see fig. 5, 6, 7, 8, 9, 10, 11, the early-dismantling member comprises a locking and unlocking slider 6 and an early-dismantling support 7, the locking and unlocking slider 6 forming a support for the early-dismantling tray 3; the locking and unlocking slide block 6 is provided with a first sliding groove 6a and a second sliding groove 6b, the locking and unlocking slide block 6 is enabled to form a frame-shaped structure with a cross-shaped hollowed middle part by the first sliding groove 6a and the second sliding groove 6b, the first sliding groove 6a is used for enabling the locking and unlocking slide block 6 and the late-dismantling vertical plate 21 to form a sliding fit connection relation, and the length of the first sliding groove 6a is larger than the width of the late-dismantling vertical plate 21; the early-dismantling support 7 is fixedly connected to the height adjusting screw rod 1, and an early-dismantling convex column 71 is arranged on the early-dismantling support 7; the second sliding chute 6b is provided with a space for receiving the early-dismantling convex column 71 to extend into; an avoiding groove 3c for avoiding the early-dismantling convex column 71 is formed at the bottom of the early-dismantling tray 3, and the avoiding groove 3c and the guide groove 3a are crossed.

Wherein, the late-dismantling top plate 22 is detachably and fixedly connected to the late-dismantling vertical plate 21; specifically, the late-dismantling top plate 22 is detachably and fixedly connected with the late-dismantling vertical plate 21 through two connecting lugs 22a, and the two connecting lugs 22a are clamped on the late-dismantling vertical plate 21; a reinforcing rib 22b is arranged between the connecting lug 22a and the late-dismantling top plate 22, and a chamfer 22c is formed on the reinforcing rib 22b to form a right triangle or a right trapezoid.

The rest of the structure of this embodiment is the same as that of embodiment 1 or 2, and is not described herein again.

In this embodiment, in order to reduce the impact when the locking and unlocking slider 6 falls, at least one of the contact surfaces of the locking and unlocking slider 6 and the early-dismantling boss 71 is provided with a guide inclined surface to form slider falling buffer; in particular to a slide block guide inclined plane 6c and an early-dismantling convex column 71 a.

In this embodiment, in order to enhance the strength of the unlocking striking portion of the locking and unlocking slider 6, a reinforcing protrusion 6d is provided in the thickness direction of the unlocking striking end of the locking and unlocking slider 6.

The detachable fixed connection mode and the specific structure of the top plate 22 and the riser plate 21 of the present embodiment can also be used to replace the connection mode of the two plates in embodiment 2, wherein the reinforcing ribs 22b do not need to be chamfered, so as to have the same upper limiting function as the limiting plate 23.

When the early-dismantling head is used for constructing a support system, a main beam and a secondary beam are erected under the condition that a locking and unlocking slide block is supported on an early-dismantling convex column; preferably, a safety measure is taken through filling or setting of a component, so that a gap between the length direction of the first sliding groove 6a and the corresponding side of the late-dismantling vertical plate 21 is eliminated, the locking and unlocking slide block is prevented from accidentally sliding, and the erection safety is ensured; when unlocking, firstly, the filler is taken out or the safety measure is relieved, and then the sliding block is knocked to implement early disassembly.

Embodiment 4, referring to fig. 12 and 13, an early-dismantling type floor support system includes a support frame composed of at least four even number of support columns 100, the plurality of support columns are respectively arranged on four corners of a corresponding rectangle, the support columns are provided with early-dismantling heads 200 according to embodiment 1, and height adjusting nuts 4 are screwed on height adjusting screws 1 of the early-dismantling heads; the early-dismantling head is provided with two main beams 8 through two bearing parts of the early-dismantling tray 3, a pin shaft or a bolt 9 penetrating through the strip hole 21a is connected between the two main beams 8, the main beams 8 are provided with secondary beams 11, the main beams 8 and the secondary beams 11 adopt C-shaped light steel section bars with the same specification, and circular connecting holes are continuously distributed on the side walls of the C-shaped light steel section bars at equal intervals.

Wherein, the supporting frame is composed of a coil buckle type scaffold; the support column 100 of the support frame comprises an outer tube 110 positioned at the lower part and an inner tube 120 positioned at the upper part, wherein the inner tube 120 is inserted in the outer tube 110 and is penetrated through connecting holes at different height positions through a pin 130 to form a height adjusting structure; the support column 100 is provided with a plurality of buckle disks 140, the buckle disks 140 are respectively arranged through the inner tube 120 and the outer tube 110, the buckle disk 140 on the outer tube 110 is welded and fixed on the outer tube 110, the buckle disk 140 on the inner tube 120 is welded and sleeved on the sleeve 141 on the inner tube 120 and is fixed through a sleeve pin shaft, the sleeve pin shaft can adopt the same pin shaft 130 for fixed connection with the inner tube 120 and the outer tube 110, the inner tube 120 is provided with a plurality of pin shaft through holes distributed along the height direction, the sleeve pin shaft fixing sleeve 141 is arranged through the pin shaft through holes with different heights, and the height position of the buckle disk 140 on the inner tube 120 is adjusted. The main beam 8 is made of C-shaped light steel, the two side walls of the C-shaped light steel are provided with continuously distributed circular connecting holes, the C-shaped light steel is lengthened through a channel steel-shaped lengthening component 10, and the lengthening component 10 is wrapped on the lengthened connecting part of the two C-shaped light steels in a three-way surrounding mode and is fixedly connected with the C-shaped light steel through bolts and nuts.

The support system of the present invention can also use the early detachment head of embodiment 2 or 3 instead of the early detachment head of embodiment 1. When the early-dismantling head of the embodiment 3 is adopted, preferably, a safety measure of filling or arranging a component is adopted to eliminate a gap between the length direction of the first sliding groove 6a and the corresponding side of the late-dismantling vertical plate 21 so as to prevent the locking and unlocking slide block from accidentally sliding and ensure the erection safety; when unlocking, firstly, the filler is taken out or the safety measure is relieved, and then the sliding block is knocked to implement early disassembly.

The C-shaped light steel in the embodiment can be replaced by a rectangular pipe or a square pipe section, and can also be replaced by a batten or a bamboo batten.

The support system of the utility model is in a supporting state, the top surface of the secondary beam 11 is as high as the top surface of the late-dismantling top plate 22 in the early-dismantling head 200; in the early-dismantling state, the main beam 8, the secondary beam 11 and the early-dismantling tray 3 fall along with the early-dismantling component, so that the top surface of the secondary beam 11 falls to a position lower than the top surface of the late-dismantling top plate 22, a part of the floor formwork is supported only by the late-dismantling top plate 22, and the rest formworks can be dismantled in advance so as to be used in a turnover manner.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. An early-dismantling head comprises a late-dismantling jacking support (2) fixedly connected to the top end of a height adjusting screw rod (1), wherein an early-dismantling tray (3) is arranged on the late-dismantling jacking support (2); the early-dismantling tray (3) forms an early-dismantling structure for lifting the later-dismantling jacking support (2) through an early-dismantling component; the device is characterized in that the late-dismantling jacking support (2) comprises a late-dismantling vertical plate (21) and a late-dismantling top plate (22), the late-dismantling top plate (22) is fixed above the late-dismantling vertical plate (21), a vertically extending long hole (21 a) is formed in the late-dismantling vertical plate (21), and the long hole (21 a) penetrates through the thickness of the late-dismantling vertical plate (21); the early-dismantling tray (3) surrounds the periphery of the late-dismantling vertical plate (21), and a lifting guide rail pair structure for lifting the early-dismantling tray (3) is formed between the early-dismantling tray (3) and the late-dismantling vertical plate (21); the early-dismantling tray (3) symmetrically extends outwards along the thickness direction of the late-dismantling vertical plate (21), and the two symmetrical extending parts form an early-dismantling bearing part.

2. The early-removal head according to claim 1, wherein the early-removal member comprises an early-removal nut (5), the early-removal nut (5) being screwed onto the height-adjustment screw (1) and forming a support for the early-removal tray (3); the early-dismantling tray (3) comprises a tray body (31) and a lower extension cylinder (32) which are fixedly connected with each other, and the tray body (31) is plate-shaped, is positioned at the upper end of the lower extension cylinder (32) and is provided with the early-dismantling bearing part; the lower extension cylinder (32) is sleeved on the periphery of the height adjusting screw rod (1), and a groove for avoiding the late-dismantling vertical plate (21) is formed in the pipe wall of the lower extension cylinder (32).

3. The early disassembly head according to claim 2, wherein the lifting guide rail pair comprises a guide groove provided on the early disassembly tray (3), the guide groove being adapted to the cross-sectional shape of the late disassembly riser (21); the slot on the lower extension cylinder (32) is communicated with the guide slot.

4. The early dismantling head according to claim 2, wherein said early dismantling tray (3) is provided at both ends thereof with upwardly extending retaining walls (3 b); a reinforcing inclined strut (33) is arranged between the tray body (31) and the lower extension cylinder (32).

5. The early dismantling head as claimed in any of claims 1 to 4, wherein said late dismantling jacking (2) is provided with a height limiting structure for limiting the upper limit height of a third member carried on the pallet.

6. The early-dismantling head according to claim 5, wherein the late-dismantling top plate (22) is fixed to the top ends of the late-dismantling risers (21), limiting plates (23) are arranged on two sides of the late-dismantling top plate (22), the two limiting plates (23) and the late-dismantling risers (21) form a cross shape, and the limiting plates (23) form the height limiting structure; or a transition cylinder (24) is integrally formed or fixedly welded on the late-dismantling top plate (22), the late-dismantling vertical plate (21) is connected with the late-dismantling top plate (22) through the transition cylinder (24), a notch for accommodating the transition cylinder (24) is formed in the late-dismantling vertical plate (21), and a cylinder wall in the thickness direction of the late-dismantling vertical plate (21) is suspended from the transition cylinder (24) to form the height limiting structure.

7. The early-disassembly head according to claim 1, wherein the early-disassembly member comprises a locking and unlocking slider (6) and an early-disassembly seat (7), the locking and unlocking slider (6) forming a support for the early-disassembly tray (3); a first sliding groove (6 a) and a second sliding groove (6 b) are formed in the locking and unlocking sliding block (6), the locking and unlocking sliding block (6) is enabled to form a frame-shaped structure with a cross-shaped hollowed middle part through the first sliding groove (6 a) and the second sliding groove (6 b), the first sliding groove (6 a) is used for enabling the locking and unlocking sliding block (6) and the late-dismantling vertical plate (21) to form a sliding fit connection relation, and the length of the first sliding groove (6 a) is larger than the width of the late-dismantling vertical plate (21); the early-dismantling support (7) is fixedly connected to the height adjusting screw rod (1), and an early-dismantling convex column (71) is arranged on the early-dismantling support (7); the second sliding chute (6 b) is provided with a space for receiving the early-dismantling convex column (71) to extend into.

8. The early disassembly head of claim 7, wherein the late-disassembly top plate (22) is removably fixedly attached to the late-disassembly riser (21).

9. An early-dismantling type floor support system is characterized by comprising a support frame consisting of at least four support columns in even number, wherein the support columns are respectively arranged at four corners of a corresponding rectangle, the support columns are provided with early-dismantling heads according to any one of claims 1 to 8, and height adjusting nuts (4) are screwed on height adjusting screws (1) of the early-dismantling heads; two main beams (8) are arranged on the early-dismantling head through two bearing parts of the early-dismantling tray (3), and a pin shaft or a bolt (9) penetrating through the strip hole (21 a) is connected between the two main beams (8).

10. The support system of claim 9, wherein the support frame is comprised of a disk scaffold.

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