CN212027170U - A roof-returning frame for transferring the concentrated load of the floor - Google Patents

Abstract

The utility model provides a roof return frame for transmitting the concentrated load of the floor slab, which comprises a standard section and a height-adjusting support arranged at the bottom of the standard section; the standard section includes a vertical column and a horizontal rod, and the vertical column and the horizontal rod are connected Form a three-dimensional frame structure. In the utility model, the top of the standard section is approached to the upper floor, the height-adjusting support is fixed on the lower floor, and the height-adjusting support is fine-tuned, so that the top of the roof return frame is in close contact with the upper floor, so as to ensure that when the floor bears a concentrated load, it will receive The force is smoothly transmitted to the top-returning frame, and the force-returning frame is convenient for weakening the force transmission layer by layer or directly transmitting it to the bottom plate, thereby improving the safety in the construction process; the lower bottom plate and the upper roof seat are snap-fitted, which is convenient for quick connection and dismantling the standard section, which is beneficial to the construction progress.

Description

A roof-returning frame for transferring the concentrated load of the floor

technical field

The utility model relates to the technical field of construction, in particular to a roof return frame used for transmitting concentrated loads of floor slabs.

Background technique

In the field of modern construction, more and more large-scale buildings use the top of large-scale steel grid structure. For the construction of large-scale steel grid structure, it is difficult to realize the ordinary construction method, and it is necessary to use the jacking method for construction. However, if the jacking bracket is supported on the floor, due to the low bearing capacity of the floor, it must be accurately returned to the top, and a back-to-top support is required to weaken the layer-by-layer transmission of the force or directly transmit it to the floor.

SUMMARY OF THE INVENTION

In view of the above-mentioned technical problems, the utility model proposes a roof return frame for transmitting the concentrated load of the floor slab, so as to solve the problem that the floor slab cannot bear the concentrated load in the prior art.

In order to achieve the above object, the technical scheme of the present utility model is achieved in this way:

The utility model relates to a roof return frame for transmitting the concentrated load of the floor slab, comprising a standard section and a height-adjusting support arranged at the bottom of the standard section; the standard section includes a vertical column and a horizontal rod, and the vertical column and the horizontal rod are connected to form a three-dimensional frame structure.

Further, the height-adjusting support includes a sleeve seat, a bolt rotatably connected to the sleeve seat, and an inner threaded member threaded with the bolt, and the inner threaded member is fixedly connected to the bottom of the standard section; There are bosses that hold the socket seat.

Further, several standard sections are provided, and several standard sections are detachably connected.

Further, the upper and lower ends of the column are provided with connecting pieces, and several standard sections are detachably connected by the connecting pieces.

Further, the connecting piece includes a lower bottom plate and an upper top seat, and the lower bottom plate is snap-fitted with the upper top seat.

Further, the upper top seat is provided with a slot for embedding the lower bottom plate.

Further, fasteners are arranged between the lower bottom plate and the upper top seat.

Further, diagonal braces are also provided on the three-dimensional frame.

Further, the three-dimensional frame is an adjustable frame.

Further, the horizontal rod is a telescopic sleeve.

Beneficial effects of the utility model: The utility model approaches the upper floor slab through the top of the standard section, the height-adjusting support is fixed on the lower floor, and the height-adjusting support is fine-tuned, so that the top of the return frame is in close contact with the upper floor, ensuring the floor When the concentrated load of the jacking bracket and the crane on the floor need to be directly applied to the floor, the force is smoothly transferred to the top-return frame. The back-up frame is convenient to weaken the layer-by-layer transmission or directly transfer the force to the bottom plate. When it is used to lift the support, it can also observe whether the return frame has subsided during the lifting process, thereby improving the safety of the lifting process; the lower bottom plate is snap-fitted with the upper roof seat, which is convenient for quick connection and disassembly and assembly of the standard section. Conducive to the construction progress; the roof-return frame can also be used in situations where a concentrated load needs to be directly applied to the floor such as a crane on the floor, mainly to prevent the floor from directly bearing the concentrated force, and at the same time increase the load of the structural beam, in this way, the concentrated load can be directly passed through The return frame is transferred to other floors or bottom plates, thereby reducing the force on the floors bearing concentrated loads and avoiding engineering quality and safety problems.

Description of drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are just some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Fig. 1 is the structural representation of the utility model embodiment 1;

Fig. 2 is the structural representation of the standard section of the utility model embodiment 1;

Fig. 3 is the top view of Fig. 2;

4 is a schematic structural diagram of the height-adjusting support of Embodiment 1 of the present utility model;

5 is a schematic structural diagram of Embodiment 2 of the present utility model;

FIG. 6 is a partial enlarged view of A in FIG. 5 .

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in FIG. 1 to FIG. 4 , the roof return frame for transmitting the concentrated load of the floor according to Embodiment 1 of the present invention includes a standard section 1 and a height-adjusting support 2 arranged at the bottom of the standard section 1; The standard section 1 includes four uprights 11 and several horizontal rods 12. The four uprights 11 are connected by the horizontal rods 12 to form a three-dimensional frame structure. At the bottom of the standard section 1 and fixed on the lower floor or bottom plate, it is convenient to fine-tune the height of the return roof frame, so that the upper end of the return roof frame is pressed against the lower surface of the upper floor slab. When using, locate and punch 3 positioning holes with a diameter of 20 on the floor, and confirm the position of the roof rack under the floor through laser positioning, so as to facilitate the installation of the roof rack. The height of the roof rack is set according to the spacing between the floors. After returning to the top frame, the top of the standard section 1 is close to the upper floor, and is adjusted by adjusting the height of the support 2. The top of the return frame is in close contact with the upper floor to ensure that the reaction force of the jacking bracket is smoothly transmitted to the top back frame. Mark the 1m line on the jacking frame, check the settlement of the 1m line during the jacking project, and keep a record at any time. Once it is found that the deviation record is large, stop the jacking at any time, and take pre-jacking measures to make the return rack return to the 1m line. The roof-return frame can also be used in situations where a concentrated load needs to be directly applied to the floor, such as a crane going to the floor. The main purpose is to prevent the floor from directly bearing the concentrated force and at the same time increase the load of the structural beam. In this way, the concentrated load is directly transmitted through the roof-return frame. to other floors or bottom plates, thereby reducing the force on the floors bearing concentrated loads and avoiding engineering quality and safety problems.

Further, as shown in FIG. 1 and FIG. 4 , the height-adjusting support 2 includes a sleeve seat 21 , a bolt 22 rotatably connected to the sleeve seat 21 , and an internal screw 23 threadedly connected to the bolt 22 , The inner threaded member 23 is fixedly connected to the bottom of the standard section 1, and the axial directions of the bolt 22 and the inner threaded member 23 are both vertical and consistent with the axial direction of the column; the bolt 22 is provided with a clamping sleeve seat 21 of the boss 221. Specifically, the sleeve seat 21 is a cylindrical structure with an open lower end and a closed upper end, a hole is opened in the middle of the upper end of the sleeve seat 21, the nut end of the top bolt 22 is located in the cavity of the cylindrical structure, and the screw of the bolt 22 is located in the cavity of the cylindrical structure. The through hole protrudes upward, and the screw rod is provided with an annular boss 221. In this embodiment, the annular boss 221 is a first nut fixed on the screw rod, and the sleeve seat 21 is clamped by the first nut to prevent the bolt 22 from falling into The cavity of the sleeve seat 21 does not affect the rotation of the bolt 22 relative to the sleeve seat 21 , and a support plate 211 is fixed at the bottom of the sleeve seat 21 . During installation, after the bolt 22 passes through the hole of the sleeve seat 21 from bottom to top, the first nut is welded on the screw of the bolt 22 to form the boss 221, and then the support plate 211 is welded on the bottom of the sleeve seat 21, and then the bolt 22 is welded. The threaded rod is threadedly connected with the inner threaded member 23 at the bottom of the standard section 1. The inner threaded member 23 includes a backing plate and a second nut fixed under the backing plate. When the boss 221 on the bolt 22 is rotated, the bolt 22 rotates together, Since the female screw 23 is fixed with the standard section 1 and cannot rotate, under the action of the thread, the second nut and the backing plate can move up and down on the bolt 22 to drive the standard section to move up and down to adjust the height.

Further, as shown in FIG. 1 , several standard sections 1 are provided, and several standard sections 1 are detachably connected. The detachable connection between the standard sections 1 facilitates the assembly and disassembly of the return roof frame, and facilitates the increase or decrease of the standard sections according to the floor space.

Further, as shown in FIG. 1 , the upper and lower ends of the upright column 11 are provided with connecting pieces, and several standard sections 1 are detachably connected through the connecting pieces. The connecting pieces of the upper and lower standard sections 1 are just aligned for easy connection.

Further, as shown in FIG. 3 , the connecting member includes a lower bottom plate 13 and an upper top seat 14 , and the lower bottom plate 13 is snap-fitted with the upper top seat 14 . The snap fit facilitates quick connection of the standard section 1. In other embodiments, the connecting member includes a lower bottom plate 13 and an upper top plate 14, and the lower bottom plate 13 and the upper top plate 14 are connected by bolts.

Further, as shown in FIG. 4 , the upper top seat 14 is provided with a card slot 141 into which the lower bottom plate 13 is embedded. Specifically, the upper top seat 14 is a shell structure with one side open. The space forms a card slot 141. The height of the space in the card slot 141 is slightly larger than the thickness of the lower bottom plate 13, which is convenient for the lower bottom plate 13 to be embedded in the card slot 141 to connect the standard section. U-shaped notch; the openings of the upper top seat 14 of the standard section 1 are all oriented in one direction, so that the four lower bottom plates 13 of each standard section 1 can be simultaneously clamped into the card slots 141 from one direction. In addition, after the standard sections are connected to form a roof-returning frame, the upper roof seat 14 of the uppermost standard section adopts a solid plate, so as to avoid deformation when the floor slab is tightened.

Further, as shown in FIG. 4 , a fastener 16 is provided between the lower bottom plate 13 and the upper top seat 14 . Each standard section 1 has four uprights, and the four uprights have a total of four lower bottom plates 13 and an upper top seat 14. Corresponding perforations can be provided on two or four of the lower bottom plates 13 and the upper top seat 14, and through the perforated bolts The lower bottom plate 13 and the upper top seat 14 are fixed to prevent relative shaking after the lower bottom plate 13 and the upper top plate 14 are clamped.

Further, as shown in FIG. 1 and FIG. 2 , the three-dimensional frame is further provided with diagonal braces 15 , which are connected between the upright column 11 and the horizontal rod 12 to enhance the strength of the three-dimensional frame structure.

Further, the three-dimensional frame is an adjustable frame. The horizontal rod 12 of the standard section 1 can be set as a telescopic sleeve, the sleeve includes an inner cylinder and an outer cylinder, one end of the inner cylinder extends into the outer cylinder, the other end of the inner cylinder is fixed on the upright column, and the outer cylinder is away from the end of the inner cylinder. It is fixed on the adjacent column, the inner cylinder and the outer cylinder can be slidably extended, and can be fixed by bolts passing through the perforations provided on the inner cylinder and the outer cylinder, and there are multiple perforations; Connected with diagonal braces, the strength of the adjustable frame will not be weakened. The adjustable frame is convenient to adjust the width and length of the standard section, and use the floor slab or jacking construction in different situations.

Embodiment 2, as shown in Figures 5 and 6, differs from Embodiment 1 in that the upper top seat 14 is provided with a locking member 3 for clamping and fixing the lower bottom plate 13, and the locking member 3 includes a hinged The pressing plates 31 at both ends of the upper top seat 14, the pressing plates 31 are connected with the folded plates 32, the folded plates 32 at one end are connected with the screw rods 33, and the folded plates 32 at the other end are provided with U-shaped grooves to place one standard section on the other. After a standard section is installed, the lower bottom plate 13 of the upper standard section is pressed against the upper top seat 14 of the lower standard section, and then the pressure plates 31 at both ends are rotated. Then the nut 34 is tightened on the screw to make the pressing plate 31 press the lower bottom plate 13, wherein the folding plate 32 is fixed on the upper side of the pressing plate 31 And the included angle with the pressing plate 31 is less than 90 degrees, the screw 33 is fixed perpendicular to the folding plate 32, so that after the screw 33 is turned horizontal and fixed, the folding plate 32 tends to the vertical direction, and the end of the pressing plate 31 tends to be downward. It is easier to compress the lower bottom plate 13 by tilting. The lower bottom plate 13 is pressed against the upper top seat 14 by the pressing plate 31, so that the force is more uniform than directly connecting the lower bottom plate 13 and the upper top seat 14 with bolts, and one upper top seat 14 is provided with two screws and connecting nuts. 34 o'clock is faster, and the disassembly and assembly efficiency is higher. In addition, after the standard sections are connected to form a roof-returning frame, the upper roof seat 14 of the uppermost standard section omits the locking member, so as to avoid affecting the uppermost standard section to tighten the floor slab.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the within the scope of protection of the present invention.

Claims (10)

1. A roof return frame for transmitting a concentrated load of a floor slab, characterized in that it comprises a standard section (1) and a height-adjusting support (2) arranged at the bottom of the standard section (1); the standard section (1) It comprises a column (11) and a horizontal rod (12), and the column (11) and the horizontal rod (12) are connected to form a three-dimensional frame structure. 2 . The roof return frame for transmitting the concentrated load of the floor according to claim 1 , wherein the height-adjusting support ( 2 ) comprises a sleeve seat ( 21 ), which is rotatably connected to the sleeve seat ( 21 ). 3 . The bolt (22) on the upper part and the internal thread part (23) threadedly connected with the bolt (22), the internal thread part (23) is fixedly connected to the bottom of the standard section (1); the bolt (22) is provided with a clamp Hold the boss (221) of the sleeve seat (21). 3 . The roof return frame for transferring the concentrated load of the floor slab according to claim 1 or 2 , characterized in that, several standard sections ( 1 ) are provided, and several standard sections ( 1 ) are detachably connected. 4 . 4. The roof return frame for transmitting the concentrated load of the floor slab according to claim 3, characterized in that the upper and lower ends of the upright column (11) are provided with connecting pieces, and several standard sections (1) are detachable through the connecting pieces connect. 5. The roof return frame for transferring the concentrated load of the floor according to claim 4, wherein the connecting member comprises a lower bottom plate (13) and an upper roof seat (14), the lower bottom plate (13) and the upper roof The seat (14) is snap-fitted. 6 . The roof return frame for transferring the concentrated load of the floor according to claim 5 , wherein the upper roof seat ( 14 ) is provided with a card slot ( 141 ) for embedding the lower bottom plate ( 13 ). 7 . 7 . The roof return frame for transmitting the concentrated load of the floor according to claim 6 , wherein a fastener ( 16 ) is provided between the lower bottom plate ( 13 ) and the upper roof seat ( 14 ). 8 . 8. The roof-returning frame for transmitting the concentrated load of the floor according to claim 1 or 2 or 4 or 5 or 6 or 7, characterized in that the three-dimensional frame is further provided with diagonal braces (15). 9 . The roof return frame for transferring the concentrated load of the floor according to claim 8 , wherein the three-dimensional frame is an adjustable frame. 10 . 10 . The roof return frame for transmitting the concentrated load of the floor according to claim 9 , wherein the horizontal rod ( 12 ) is a telescopic sleeve. 11 .

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