Fabricated formwork-removal-free steel bar truss floor support plate

Abstract

The utility model relates to the technical field of floor plates, and discloses an assembly type formwork-removal-free steel bar truss floor support plate which comprises a bottom formwork, two lower chord steel bars are arranged at the top of the bottom formwork, a plurality of reinforcing plates are arranged outside the two lower chord steel bars, and limiting grooves are formed in the front ends and the rear ends of the left sides and the right sides of the reinforcing plates. A plurality of fixing assemblies are arranged on the two sides of the top of the bottom die, the fixing assemblies are arranged on the two sides of the reinforcing plate, two first grooves are formed in the left side of the bottom die, connecting bases are fixedly connected into the first grooves, sliding grooves are formed in the outer sides of the connecting bases, and two limiting clamping blocks are slidably connected into the sliding grooves; supporting plates are fixedly connected to the two sides of the connecting base, and pull rods penetrate through the two supporting plates and are slidably connected to the interiors of the two supporting plates. According to the fixing device, the reinforcing plate, the fixing base, the mounting groove, the clamping groove, the limiting groove and the rotary knob work in a matched mode, and the two sides of the reinforcing plate can be conveniently fixed through the fixing assemblies.

Description

Technical Field

[0001] The utility model relates to the technical field of floor slabs, in particular to an assembled formwork-free steel bar truss floor deck. Background Art

[0002] With the development of prefabricated buildings, reinforced truss concrete composite slabs are usually used in the construction of floor systems of civil buildings, that is, the lower half of the reinforced truss is poured together with concrete to make a prefabricated concrete thin plate. When in use, the back layer of concrete is poured to finally form a concrete composite slab. The reinforced truss floor deck is made by processing the upper and lower layers of steel bars into the form of space trusses in the factory, and then welding the galvanized corrugated steel plates to the reinforced truss skeleton to form a reinforced truss floor deck. After pouring concrete at the construction site, a reinforced truss floor system is formed. The reinforced truss floor deck does not need to be equipped with a supporting formwork during construction, which can reduce the amount of on-site steel bar binding work. It has many advantages such as fast construction speed, short construction period, high degree of assembly and reasonable force mode.

[0003] After searching, the existing Chinese patent announcement number is: CN220768564U, which provides an assembled formwork-free steel truss floor deck. The patent is provided with a triangular connecting steel pipe at the bottom end of the two bottom bars, and the sharp corner of the connecting steel pipe is fixedly connected to the bottom end of the two bottom bars, and then the lifting base plate is connected and fixed to the bottom end of the connecting steel pipe by using self-tapping screws, so that the steel truss, the connecting steel pipe and the lifting base plate can form an integrated fixed lifting structure. After the steel truss is fixed to the main structure of the building and concrete is poured, the steel truss and the connecting steel pipe are wrapped, and the lifting base plate will form a barrier to the concrete on the lower side of the steel truss to withstand the downward load applied by the concrete. The steel truss and the connecting steel pipe can apply an upward load to the lifting base plate in the concrete, which is conducive to directly fixing the lifting base plate to the lower side of the concrete after the concrete is solidified, and it is convenient to directly carry out lifting construction through the lifting base plate, without the need for formwork and demolding construction, which can effectively improve the efficiency of building construction and reduce costs.

[0004] Although the above patent facilitates direct hoisting construction through the hoisting bottom plate without the need for formwork construction, which can effectively improve the efficiency of construction, the above-mentioned assembled formwork-free steel truss floor deck still has the following problems: the steel truss is directly welded to the bottom formwork, lacks further reinforcement devices, and the reinforcement effect is not good.

[0005] In view of the above problems, an assembled formwork-free reinforced truss floor deck is proposed. Utility Model Content

[0006] The purpose of the present utility model is to provide an assembled formwork-free steel bar truss floor slab, which solves the problem in the background technology that the steel bar truss and the bottom formwork are directly welded without further reinforcement devices and the reinforcement effect is not good.

[0007] To achieve the above object, the present utility model provides the following technical solution: An assembled formwork-free steel bar truss floor slab, including a bottom formwork, two lower chord steel bars are arranged on the top of the bottom formwork, and a plurality of reinforcement plates are arranged outside both of the two lower chord steel bars. Limiting grooves are opened at the front and rear ends of the left and right sides of the reinforcement plates. A plurality of fixing components are arranged on both sides of the top of the bottom formwork, and the fixing components are arranged on both sides of the reinforcement plates. Two first grooves are opened on the left side of the bottom formwork, a connecting seat is fixedly connected in the first grooves, a sliding groove is opened on the outside of the connecting seat, and two limiting clamping blocks are slidably connected in the sliding groove. Support plates are fixedly connected to both sides of the connecting seat, and pull rods penetrate and are slidably connected in both of the two support plates. Two second grooves are opened on the right side of the bottom formwork, a fixing block is fixedly connected in the second grooves, a limiting insertion block is fixedly connected to the outside of the fixing block, and web steel bars are fixedly connected to the outside of both of the two lower chord steel bars, and an upper chord steel bar is fixedly connected between the tops of the two web steel bars.

[0008] By adopting the above technical solution, the two limiting insertion blocks arranged on the right side of the bottom formwork are inserted between the two limiting clamping blocks arranged on the left side of another bottom formwork, so as to realize the combined fixation of multiple groups of bottom formworks.

[0009] As a further description of the above technical solution: The fixing component includes a fixing seat, the bottom of the fixing seat is fixedly connected to the bottom formwork, an installation groove is opened on the inner side of the fixing seat, a bidirectional threaded rod penetrates and is rotatably connected in the installation groove, and clamping blocks are threadedly connected to the outside of both sides of the bidirectional threaded rod.

[0010] By adopting the above technical solution, the fixing component can conveniently fix both sides of the reinforcement plate, and improve the stability of the steel bar truss and the bottom formwork.

[0011] As a further description of the above technical solution: Card slots are opened on both sides of the bottom of the reinforcement plate, and the lower chord steel bars are arranged in the card slots.

[0012] By adopting the above technical solution, the lower chord steel bars can be conveniently limited through the card slots.

[0013] As a further description of the above technical solution: The opposite ends of the two pull rods are fixedly connected to the limiting clamping blocks.

[0014] By adopting the above technical solution, the limiting clamping blocks can be conveniently driven to move through the pull rods.

[0015] As a further description of the above technical solution: At the opposite ends of the two pull rods, pull plates are fixedly connected, and the pull plates are arranged outside the support plate.

[0016] By adopting the above technical solution, the pull plate plays a limiting effect.

[0017] As a further description of the above technical solution: A spring is sleeved outside the pull rod, and the spring is arranged between the limiting clamp block and the support plate.

[0018] By adopting the above technical solution, the spring reset can drive the relative movement of the two limiting clamp blocks.

[0019] As a further description of the above technical solution: A knob is fixedly connected to the rear end of the bidirectional threaded rod, and the knob is arranged outside the fixed seat.

[0020] By adopting the above technical solution, the bidirectional threaded rod can be conveniently rotated by the knob.

[0021] As a further description of the above technical solution: On the opposite sides of the two clamping blocks, they are both arranged in the limiting grooves.

[0022] By adopting the above technical solution, the reinforcing plate can be limited by inserting the clamping block into the limiting groove.

[0023] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0024] 1. For an assembled formwork-free steel bar truss floor slab provided by the present utility model, firstly, through the mutual cooperation of the first groove, the second groove, the limiting clamp block, the support plate, the pull rod, the pull plate, the spring, the fixed block, and the limiting insertion block, the two limiting insertion blocks arranged on the right side of the bottom mold are inserted between the two limiting clamp blocks arranged on the left side of another bottom mold, so as to realize the combined fixation of multiple groups of bottom molds.

[0025] 2. For an assembled formwork-free steel bar truss floor slab provided by the present utility model, through the mutual cooperation of the reinforcing plate, the fixed seat, the installation groove, the bidirectional threaded rod, the clamping block, the clamping groove, the limiting groove, and the knob, the two sides of the reinforcing plate can be conveniently fixed by the fixing component, so as to improve the connection stability between the steel bar truss and the bottom mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0027] Figure 2 It is an exploded schematic diagram of the structure of the fixing component of the present utility model;

[0028] Figure 3 It is a schematic diagram of the structure of the limiting clamp block of the present utility model;

[0029] Figure 4 Schematic diagram of the reinforcement plate structure of the present utility model.

[0030] In the figure: 1, bottom formwork; 2, lower chord steel bars; 3, reinforcement plate; 4, limit groove; 5, fixed seat; 6, installation groove; 7, bidirectional threaded rod; 8, clamping block; 9, card slot; 10, first groove; 11, connecting seat; 12, sliding groove; 13, limit clamping block; 14, support plate; 15, pull rod; 16, pull plate; 17, spring; 18, fixed block; 19, limit insertion block; 20, upper chord steel bars; 21, web member steel bars; 22, second groove; 23, knob. Specific embodiments

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described 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 embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0032] To further understand the content of the present utility model, the present utility model will be described in detail with reference to the accompanying drawings.

[0033] Referring to Figures 1-4 , an assembled formwork-free steel bar truss floor slab of the present utility model includes a bottom formwork 1. Two lower chord steel bars 2 are arranged on the top of the bottom formwork 1. A plurality of reinforcement plates 3 are arranged outside the two lower chord steel bars 2 to reinforce the steel bar truss. Limit grooves 4 are opened at the front and rear ends on the left and right sides of the reinforcement plate 3. A plurality of fixing components are arranged on both sides of the top of the bottom formwork 1. The fixing components are arranged on both sides of the reinforcement plate 3, and the reinforcement plate 3 can be fixed by the fixing components. Two first grooves 10 are opened on the left side of the bottom formwork 1. A connecting seat 11 is fixedly connected in the first groove 10 to play a connecting role. A sliding groove 12 is opened on the outside of the connecting seat 11 to limit the limit clamping block 13. Two limit clamping blocks 13 are slidably connected in the sliding groove 12. Support plates 14 are fixedly connected to both sides of the connecting seat 11 to play a supporting role. Pull rods 15 penetrate and are slidably connected in the two support plates 14 and can drive the limit clamping block 13 to move. Two second grooves 22 are opened on the right side of the bottom formwork 1. A fixed block 18 is fixedly connected in the second groove 22. A limit insertion block 19 is fixedly connected to the outside of the fixed block 18 to cooperate with the limit clamping block 13 for connection. Web member steel bars 21 are fixedly connected to the outside of the two lower chord steel bars 2 to improve stability. An upper chord steel bar 20 is fixedly connected between the tops of the two web member steel bars 21.

[0034] Referring to Figure 2, the fixing component includes a fixing base 5, the bottom of the fixing base 5 is fixedly connected to the bottom mold 1, an installation groove 6 is formed on the inner side of the fixing base 5, a bidirectional threaded rod 7 is penetrated and rotatably connected in the installation groove 6, clamping blocks 8 are threadedly connected to the outer sides of both sides of the bidirectional threaded rod 7, and the opposite sides of the two clamping blocks 8 are arranged in the limiting grooves 4. The rear end of the bidirectional threaded rod 7 is fixedly connected to a knob 23, and the knob 23 is arranged outside the fixing base 5. Through the fixing component, it is convenient to fix both sides of the reinforcing plate 3, and the stability of the steel bar truss and the bottom mold 1 is improved.

[0035] Refer to Figure 1 , Figure 2 and Figure 3 , clamping grooves 9 are formed on both sides of the bottom of the reinforcing plate 3 to play a limiting role. The lower chord steel bars 2 are arranged in the clamping grooves 9. The opposite ends of the two tie rods 15 are fixedly connected to the limiting clamping blocks 13. The opposite ends of the two tie rods 15 are fixedly connected to a pulling plate 16. The pulling plate 16 is arranged outside the supporting plate 14. The pulling plate 16 can drive the tie rods 15 to move. A spring 17 is sleeved on the outer side of the tie rods 15, and the spring 17 is arranged between the limiting clamping block 13 and the supporting plate 14. The reset of the spring 17 can drive the two limiting clamping blocks 13 to move relatively.

[0036] Working principle: During work, when multiple bottom molds 1 need to be connected, the two limiting insertion blocks 19 arranged on the right side of the bottom mold 1 are inserted between the two limiting clamping blocks 13 arranged on the left side of another bottom mold 1. At this time, the two limiting clamping blocks 13 slide to both sides in the sliding grooves 12 after being squeezed. The two limiting clamping blocks 13 squeeze the spring 17 to both sides. After the limiting insertion block 19 enters the limiting clamping block 13, the spring 17 resets, driving the limiting clamping blocks 13 to move relatively again to limit the limiting insertion block 19, completing the connection of the two bottom molds 1. Cover multiple reinforcing plates 3 on the lower chord steel bars 2 and limit them through the clamping grooves 9. Then, turn the knob 23 to drive the bidirectional threaded rod 7 to rotate, drive the two clamping blocks 8 to move relatively through the bidirectional threaded rod 7, and make the L-shaped clamping blocks 8 move relatively and insert into the limiting grooves 4 on both sides of the reinforcing plate 3 to complete the limitation of the reinforcing plate 3.

[0037] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to this process, method, article or device.

[0038] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A prefabricated formwork-free steel bar truss floor slab, comprising a bottom formwork (1), characterized in that: Two lower chord steel bars (2) are fixed to the top of the bottom formwork (1). A plurality of reinforcement plates (3) are arranged outside both of the two lower chord steel bars (2). Limiting grooves (4) are opened at the front and rear ends of the left and right sides of the reinforcement plate (3). A plurality of fixing components are arranged on both sides of the top of the bottom formwork (1). The fixing components are arranged on both sides of the reinforcement plate (3). Two first grooves (10) are opened on the left side of the bottom formwork (1). A connecting seat (11) is fixedly connected in the first groove (10). A sliding groove (12) is opened on the outer side of the connecting seat (11). Two limiting clamping blocks (13) are slidably connected in the sliding groove (12). Support plates (14) are fixedly connected to both sides of the connecting seat (11). A pull rod (15) penetrates through and is slidably connected in both of the two support plates (14). Two second grooves (22) are opened on the right side of the bottom formwork (1). A fixing block (18) is fixedly connected in the second groove (22). A limiting insertion block (19) is fixedly connected to the outer side of the fixing block (18). Web steel bars (21) are fixedly connected to the outside of both of the two lower chord steel bars (2). An upper chord steel bar (20) is fixedly connected between the tops of the two web steel bars (21).

2. The prefabricated formwork-free steel bar truss floor slab according to claim 1, wherein: The fixing component includes a fixing seat (5). The bottom of the fixing seat (5) is fixedly connected to the bottom formwork (1). An installation groove (6) is opened on the inner side of the fixing seat (5). A bidirectional threaded rod (7) penetrates through and is rotatably connected in the installation groove (6). Clamping blocks (8) are threadedly connected to the outer sides of both sides of the bidirectional threaded rod (7).

3. The prefabricated formwork-free steel bar truss floor slab according to claim 1, wherein: Card slots (9) are opened on both sides of the bottom of the reinforcement plate (3). The lower chord steel bar (2) is arranged in the card slot (9).

4. The prefabricated formwork-free steel bar truss floor slab according to claim 1, wherein: The opposite ends of the two pull rods (15) are fixedly connected to the limiting clamping blocks (13).

5. The prefabricated formwork-free steel bar truss floor slab according to claim 1, characterized in that: The opposite ends of the two pull rods (15) are fixedly connected with pull plates (16). The pull plates (16) are arranged outside the support plates (14).

6. The prefabricated formwork-free steel bar truss floor slab according to claim 1, characterized in that: A spring (17) is sleeved on the outside of the pull rod (15). The spring (17) is arranged between the limiting clamping block (13) and the support plate (14).

7. The prefabricated formwork-free steel bar truss floor slab according to claim 2, wherein: A knob (23) is fixedly connected to the rear end of the bidirectional threaded rod (7). The knob (23) is arranged outside the fixing seat (5).

8. A prefabricated formwork-free steel bar truss floor slab according to claim 2, characterized in that: The opposite sides of the two clamping blocks (8) are both arranged in the limiting groove (4).

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