Detachable bottom mold steel bar truss floor support plate

By combining the design of connection, support, load-bearing and limiting mechanisms, the problem of the bottom formwork of steel truss floor slab cannot be easily disassembled is solved, realizing convenient disassembly and reuse, and improving the practicality and universality of the device.

CN224532006UActive Publication Date: 2026-07-21QINGHAI XIKUANG HANGXIAO STEEL STRUCTURE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGHAI XIKUANG HANGXIAO STEEL STRUCTURE CO LTD
Filing Date
2025-08-28
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

The existing bottom formwork of steel truss floor decking cannot be easily disassembled, resulting in the bottom formwork being used only once, which affects the efficiency of reuse.

Method used

The design employs a combination of connecting mechanism, support mechanism, load-bearing mechanism and limiting mechanism. It achieves stable connection, support and disassembly of the steel truss body through threaded connection and U-shaped fixing sleeve, including the combined use of connecting block, positioning sleeve, support plate, load-bearing plate, fastening screw and U-shaped fixing sleeve.

Benefits of technology

It enables convenient disassembly of steel truss floor slabs, improves the reusability of bottom formwork, avoids damage to connecting blocks and support plates, and enhances the practicality and versatility of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a detachable bottom die steel bar truss floor support plate specifically related to building component technical field, including a plurality of steel bar truss bodies, a plurality of steel bar truss bodies lower part all interval distribution fixed connection have a plurality of connecting mechanisms, a plurality of groups supporting mechanism lower part all common fixed connection have bearing mechanism, a plurality of bearing mechanism lower part common swing joint has bottom die subassembly, the upper swing joint of bottom die subassembly has the limiting mechanism. The utility model discloses a detachable bottom die steel bar truss floor support plate can realize the effect of connecting and fixing corresponding steel bar truss body through connecting mechanism, can realize the effect of being convenient for installing and positioning a plurality of groups steel bar truss body through bearing mechanism, can realize bearing a plurality of bearing mechanisms under the effect of bottom die subassembly, and through limiting mechanism can be convenient for the effect of supporting and limiting a plurality of groups connecting mechanisms, improve the practicality and universality of device.
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Description

Technical Field

[0001] This utility model relates to the field of building component technology, and in particular to a detachable bottom formwork steel truss floor deck. Background Technology

[0002] A reinforced steel truss floor deck is a type of load-bearing slab constructed by connecting steel bars as the top chord, bottom chord, and web members using resistance spot welding. The composite load-bearing slab formed by connecting the steel truss to the base slab via resistance spot welding is called a reinforced steel truss floor deck. This mechanized production method facilitates uniform spacing of the reinforcing bars and consistent concrete cover thickness, improving the construction quality of the floor slab. Prefabricated reinforced steel truss floor decks significantly reduce on-site rebar tying work, accelerate construction progress, increase construction safety, and promote civilized construction practices. Prefabricated formwork and connectors are easy to assemble and disassemble, can be reused multiple times, save steel, and meet national energy conservation and environmental protection requirements.

[0003] Chinese patent document CN113293906B discloses a steel truss floor deck, including a bottom formwork. A steel truss and supporting members are provided on one side of the bottom formwork. The steel truss is detachably connected to the bottom formwork. The portion of the supporting member extending beyond the edge of the bottom formwork forms a support section. When the steel truss floor deck is spliced, the steel truss of the floor deck or the bottom formwork supports the support section of the adjacent steel truss floor deck. The steel truss floor deck (hereinafter referred to as floor deck) is assembled with supporting members while connecting the steel truss, making assembly simpler and more convenient. Furthermore, when multiple floor decks are spliced, adjacent floor decks can support each other to form a more robust formwork structure. The supporting section above the bottom formwork can rest against the steel structural beam or beam formwork. The force borne by the floor deck can be transferred to the steel structural beam or beam formwork through the supporting members, effectively reducing misalignment and grout leakage at the edges, resulting in a smoother floor slab.

[0004] The aforementioned patent documents can effectively reduce misalignment and grout leakage at the edges during implementation, resulting in a flatter floor slab. However, they do not allow for easy disassembly of the bottom formwork, making the bottom formwork a single-use item and affecting its reusability. Utility Model Content

[0005] The main purpose of this utility model is to provide a detachable bottom formwork steel truss floor deck, which can effectively solve the problem of the inconvenience of disassembling the bottom formwork.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A detachable bottom formwork steel truss floor deck includes several steel truss bodies. Several connecting mechanisms are fixedly connected to the lower part of each of the steel truss bodies at intervals. Supporting mechanisms are fixedly connected to the lower part of each of the connecting mechanisms. Bearing mechanisms are fixedly connected to the lower part of each of the supporting mechanisms. Bottom formwork components are movably connected to the lower part of each of the bearing mechanisms. Limiting mechanisms are movably connected to the upper part of the bottom formwork components.

[0008] Preferably, the bottom mold assembly includes a template, and a plurality of threaded holes are spaced apart at the front and rear ends of the outer surface of the template, and a plurality of threaded holes are spaced apart on the left and right sides of the upper end of the outer surface of the template.

[0009] Preferably, the connecting mechanism includes a connecting block, and positioning sleeves are symmetrically fixedly connected to the outer surface of the connecting block.

[0010] Preferably, the support mechanism includes a support plate, and a horizontal plate is fixedly connected to the upper end of the outer surface of the support plate, and the upper end of the horizontal plate is fixedly connected to the lower end of the outer surface of the corresponding connecting block.

[0011] Preferably, the bearing mechanism includes a bearing plate, and the left and right sides of the bearing plate are symmetrically threaded with fastening screws, and the two fastening screws are respectively threaded to the inner cavity of the corresponding threaded hole. The lower ends of the plurality of support plates are fixedly connected to the upper part of the outer surface of the corresponding fastening screw.

[0012] Preferably, the limiting mechanism includes a U-shaped fixing sleeve, with a plurality of fastening screws threadedly connected at intervals at both the front and rear ends of the outer surface of the U-shaped fixing sleeve, and a plurality of limiting plates fixedly connected at intervals at the middle of the upper part of the outer surface of the U-shaped fixing sleeve, and the plurality of fastening screws threadedly connected to the inner cavity of the corresponding threaded hole, and the upper ends of the plurality of limiting plates movably connected to the lower end of the outer surface of the corresponding connecting block.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This utility model can connect and fix the corresponding steel truss body through the connecting mechanism, and support the corresponding connecting mechanism through the supporting mechanism, thereby improving the practicality of the device. The bearing mechanism can facilitate the installation and positioning of several groups of steel truss bodies. Under the action of the bottom formwork assembly, several bearing mechanisms can be supported. Furthermore, the limiting mechanism can facilitate the support and limiting of several groups of connecting mechanisms, thereby improving the practicality and universality of the device.

[0015] 2. When the U-shaped fixing sleeve is installed and fixed on the upper end of the template by a number of fastening screws, the number of limiting plates can support the lower end of the corresponding number of connecting blocks, thereby avoiding the excessive weight of the steel bars loaded on the steel truss body, thus avoiding the phenomenon that the connecting blocks or support plates are prone to breakage and damage, and improving the practicality and universality of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the bottom mold assembly of this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting mechanism, supporting mechanism, and load-bearing mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the limiting mechanism of this utility model.

[0020] In the diagram: 1. Steel truss body; 2. Connecting mechanism; 21. Connecting block; 22. Positioning sleeve; 3. Supporting mechanism; 31. Support plate; 32. Horizontal plate; 4. Bearing mechanism; 41. Bearing plate; 42. Fastening screw one; 5. Bottom formwork assembly; 51. Template; 52. Threaded hole one; 53. Threaded hole two; 6. Limiting mechanism; 61. U-shaped fixing sleeve; 62. Fastening screw two; 63. Limiting support plate. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] like Figure 1 As shown, a detachable bottom formwork steel truss floor deck includes several steel truss bodies 1. Several connecting mechanisms 2 are fixedly connected to the lower part of each steel truss body 1 at intervals, which can connect and fix the corresponding steel truss bodies 1. Supporting mechanisms 3 are fixedly connected to the lower part of each connecting mechanism 2, which can support and fix the corresponding connecting mechanisms 2. Bearing mechanisms 4 are fixedly connected to the lower part of each supporting mechanism 3, which can facilitate the installation and positioning of the several steel truss bodies 1. Bottom formwork assembly 5 is movably connected to the lower part of each bearing mechanism 4, which can bear the load of the several bearing mechanisms 4. Limiting mechanisms 6 are movably connected to the upper part of the bottom formwork assembly 5, which can facilitate the support and limiting of the several connecting mechanisms 2.

[0023] To achieve the purpose of supporting several load-bearing mechanisms 4, refer to... Figure 2The bottom mold assembly 5 includes a template 51. The front and rear ends of the outer surface of the template 51 are provided with a number of threaded holes 52 at intervals, and the upper left and right sides of the outer surface of the template 51 are provided with a number of threaded holes 53 at intervals.

[0024] To achieve the purpose of connecting and fixing the corresponding steel truss body 1, refer to... Figure 3 The connecting mechanism 2 includes a connecting block 21, and a positioning sleeve 22 is symmetrically fixedly connected to the outer surface of the connecting block 21, which can realize the function of fixing the lower part of several sets of steel truss bodies 1.

[0025] To achieve the purpose of supporting and fixing the corresponding connecting mechanism 2, refer to... Figure 3 The support mechanism 3 includes a support plate 31, and a horizontal plate 32 is fixedly connected to the upper end of the outer surface of the support plate 31, which can support and fix the corresponding connecting block 21. The upper end of the horizontal plate 32 is fixedly connected to the lower end of the outer surface of the corresponding connecting block 21.

[0026] To facilitate the installation and positioning of several sets of steel truss bodies 1, please refer to... Figure 3 The bearing mechanism 4 includes a bearing plate 41. The left and right sides of the bearing plate 41 are symmetrically threaded with fastening screws 42. The fastening screws 42 can be positioned in the corresponding threaded holes 53 to fix the bearing plate 41. The two fastening screws 42 are respectively threaded to the corresponding threaded holes 53. The lower ends of several support plates 31 are fixedly connected to the upper part of the outer surface of the corresponding fastening screws 42.

[0027] To facilitate the support and limiting of several sets of connecting mechanisms 2, please refer to... Figure 4 The limiting mechanism 6 includes a U-shaped fixing sleeve 61. Several fastening screws 62 are threadedly connected at intervals on the front and rear ends of the outer surface of the U-shaped fixing sleeve 61. By rotating and tightening them into the inner cavity of the corresponding threaded hole 53, the U-shaped fixing sleeve 61 can be positioned and locked onto the upper end of the template 51. Several sets of limiting plates 63 are fixedly connected at intervals on the middle of the upper part of the outer surface of the U-shaped fixing sleeve 61. These plates can support and limit several sets of horizontal plates 32 and connecting blocks 21. The fastening screws 62 are threadedly connected to the inner cavity of the corresponding threaded hole 52. The upper ends of the limiting plates 63 are movably connected to the lower end of the outer surface of the corresponding connecting block 21.

[0028] The working principle of this utility model is as follows: During use, several sets of connecting blocks 21 and positioning sleeves 22 can stably connect and support the corresponding steel truss bodies 1. When the upper part of several steel truss bodies 1 carries a large number of steel bars, several sets of limiting plates 63 can stably support the corresponding sets of connecting blocks 21, thereby making several steel truss bodies 1 loaded with steel bars stable. When it is necessary to disassemble the template 51, firstly, several fastening screws 42 are rotated out from the inner cavity of the corresponding threaded hole 53, and then several bearing plates 41 and the corresponding steel truss bodies 1 are pulled upwards, so that several steel truss bodies 1 can be disassembled smoothly. At this time, several fastening screws 62 are rotated out from the inner cavity of the corresponding threaded hole 52, and then the U-shaped fixing sleeve 61 is removed from the upper end of the template 51, so that the template 51 can be quickly disassembled.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A detachable bottom formwork steel truss floor deck, comprising a plurality of steel truss bodies (1), characterized in that: A plurality of connecting mechanisms (2) are fixedly connected at intervals to the lower part of a plurality of steel truss bodies (1), a support mechanism (3) is fixedly connected to the lower part of a plurality of connecting mechanisms (2), a bearing mechanism (4) is fixedly connected to the lower part of a plurality of support mechanisms (3), a bottom formwork assembly (5) is movably connected to the lower part of a plurality of bearing mechanisms (4), and a limit mechanism (6) is movably connected to the upper part of the bottom formwork assembly (5).

2. The removable bottom formwork steel truss floor deck slab according to claim 1, characterized in that: The bottom mold assembly (5) includes a template (51). The front and rear ends of the outer surface of the template (51) are provided with a number of threaded holes (52) at intervals. The upper left and right sides of the outer surface of the template (51) are provided with a number of threaded holes (53) at intervals.

3. The removable bottom formwork steel truss floor deck slab according to claim 1, characterized in that: The connecting mechanism (2) includes a connecting block (21), and positioning sleeves (22) are symmetrically fixedly connected to the outer surface of the connecting block (21).

4. A detachable bottom formwork steel truss floor deck according to claim 3, characterized in that: The support mechanism (3) includes a support plate (31), and a horizontal plate (32) is fixedly connected to the upper end of the outer surface of the support plate (31), and the upper end of the horizontal plate (32) is fixedly connected to the lower end of the outer surface of the corresponding connecting block (21).

5. A detachable bottom formwork steel truss floor deck according to claim 4, characterized in that: The bearing mechanism (4) includes a bearing plate (41), and the left and right sides of the bearing plate (41) are symmetrically threaded with fastening screws (42), and the two fastening screws (42) are respectively threaded to the inner cavity of the corresponding threaded hole (53). The lower ends of several support plates (31) are fixedly connected to the upper part of the outer surface of the corresponding fastening screw (42).

6. A detachable bottom formwork steel truss floor deck according to claim 3, characterized in that: The limiting mechanism (6) includes a U-shaped fixing sleeve (61). The front and rear ends of the outer surface of the U-shaped fixing sleeve (61) are threadedly connected with a number of fastening screws (62) at intervals. The upper middle part of the outer surface of the U-shaped fixing sleeve (61) is fixedly connected with a number of limiting plates (63) at intervals. The fastening screws (62) are threadedly connected to the inner cavity of the corresponding threaded hole (52). The upper ends of the limiting plates (63) are movably connected to the lower end of the outer surface of the corresponding connecting block (21).