Detachable truss floor support plate for building

Abstract

The utility model relates to a detachable truss floor support plate for a building, and belongs to the technical field of truss floor slabs, the detachable truss floor support plate comprises a steel bar truss and a bottom plate arranged on the bottom surface of the steel bar truss, a connecting assembly is arranged on the steel bar truss, and the limiting end of the connecting assembly penetrates through the bottom plate and is connected with the bottom plate in a clamped mode; when the limiting end of the connecting assembly limits the bottom plate, the locking end of the connecting assembly is connected with the bottom plate so that the bottom plate can be locked on the steel bar truss, and therefore detachable connection between the steel bar truss and the bottom plate is achieved. The detachable steel bar truss has the effect that the steel bar truss and the bottom plate are detachable, and therefore the bottom plate can be repeatedly used.

Description

Technical Field

[0001] This application relates to the technical field of truss floor slabs, and in particular to a detachable truss floor formwork for buildings. Background Art

[0002] Currently in the construction field, floor formworks are widely used in floor slab construction.

[0003] A common type of floor formwork is the truss floor formwork, which consists of a steel bar truss and a bottom plate, and has a high load-bearing capacity.

[0004] However, the above-mentioned related technologies have the following problems: Traditional floor formworks are mostly integrally welded or fixedly connected, and are not easy to disassemble and reuse. Utility Model Content

[0005] In order to achieve detachable connection between the steel bar truss and the bottom plate, which is beneficial to the reuse of the bottom plate, this application provides a detachable truss floor formwork for buildings.

[0006] The detachable truss floor formwork for buildings provided by this application adopts the following technical solutions:

[0007] A detachable truss floor formwork for buildings includes a steel bar truss and a bottom plate arranged on the bottom surface of the steel bar truss. A connecting component is arranged on the steel bar truss. The limiting end of the connecting component passes through the bottom plate and is clamped with the bottom plate. When the limiting end of the connecting component limits the bottom plate, the locking end of the connecting component is connected to the bottom plate to lock the bottom plate on the steel bar truss, thereby realizing detachable connection between the steel bar truss and the bottom plate.

[0008] By adopting the above technical solution, when it is necessary to disassemble the bottom plate from the steel bar truss, unlock the locking end of the connecting component and make the limiting end of the connecting component disengage from the limitation of the bottom plate, thereby realizing detachable connection between the steel bar truss and the bottom plate, which is beneficial to the reuse of the bottom plate.

[0009] Preferably, the steel bar truss includes two longitudinally arranged lower chord steel bars that are parallel to each other, an upper chord steel bar arranged between the two lower chord steel bars and above the lower chord steel bars, two vertically arranged vertical steel bars fixedly connected to the opposite ends of the upper chord steel bar, horizontal steel bars fixedly connected between the two lower chord steel bars, and web bars fixedly connected between the upper chord steel bar and the lower chord steel bars. The upper chord steel bar is fixed to the horizontal steel bar.

[0010] By adopting the above technical solution, this design enables the steel bar truss to have excellent stability and load-bearing capacity, ensuring the safety of building construction.

[0011] Preferably, a downward folding edge is integrally formed on the web reinforcement. The top surface of the downward folding edge supports the corresponding lower chord reinforcement and is fixedly connected to the lower chord reinforcement. An upward folding edge is bent upward on the web reinforcement, and the upward folding edge is fixed to the periphery of the upper chord reinforcement.

[0012] By adopting the above technical solution, the folding edge design of the web reinforcement enables the web reinforcement to be more firmly connected to the upper chord reinforcement and the lower chord reinforcement.

[0013] Preferably, the connecting component includes a connecting block detachably connected to the bottom surface of the lower chord reinforcement, a limiting rod fixedly connected to the bottom surface of the connecting block, a limiting block rotatably connected to the bottom end of the limiting rod, and a locking bolt threadedly connected to the limiting block. The bottom surface of the connecting block abuts against the top surface of the bottom plate. A limiting hole for the limiting block to pass through is formed on the top surface of the bottom plate. Both the limiting block and the limiting hole are rectangular. A receiving groove communicating with the limiting hole is formed on the bottom surface of the bottom plate. A first thread groove threadedly connected to the locking bolt is formed on the inner top wall of the receiving groove.

[0014] By adopting the above technical solution, rotate the limiting block so that the direction of the limiting block is consistent with the direction of the limiting hole, and pass the limiting block through the limiting hole. At this time, the limiting block is located in the receiving groove, and then rotate the limiting block so that the limiting block is misaligned with the limiting hole, thereby limiting the bottom plate on the lower chord reinforcement through the limiting block; when the limiting block is misaligned with the limiting hole, at this time the locking bolt is aligned with the first thread groove, rotate the locking bolt so that the locking bolt is threadedly connected to the first thread groove, thereby locking the limiting block in the receiving groove, and further realizing the detachable connection of the bottom plate to the lower chord reinforcement.

[0015] Preferably, a counterbore matching the head of the locking bolt is formed on the bottom surface of the limiting block, and an internal hexagonal hole is formed on the bottom surface of the head of the locking bolt.

[0016] By adopting the above technical solution, the setting of the counterbore makes the head of the locking bolt flush with the bottom surface of the limiting block, and the setting of the internal hexagonal hole enables the staff to rotate the locking bolt located in the counterbore through a tool.

[0017] Preferably, a cover plate for covering the notch of the receiving groove is threadedly connected to the receiving groove.

[0018] By adopting the above technical solution, the cover plate is provided to cover the receiving groove.

[0019] Preferably, a stud is fixedly connected to the top surface of the connecting block, and a second thread groove threadedly connected to the stud is formed on the bottom surface of the lower chord reinforcement.

[0020] By adopting the above technical solution, the threaded connection between the stud and the second thread groove realizes the detachable connection between the connecting block and the lower chord reinforcement.

[0021] Preferably, a triangular structure is formed between the upper chord steel bars and the two lower chord steel bars, so that the overall structure of the steel bar truss can be more stable.

[0022] By adopting the above technical solution, a triangular structure is formed between the upper chord steel bars and the two lower chord steel bars, so that the overall structure of the steel bar truss can be more stable.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. When it is necessary to disassemble the bottom plate from the steel bar truss, unlock the locking end of the connecting component and make the limiting end of the connecting component disengage from the limitation of the bottom plate, so as to realize the detachable connection between the steel bar truss and the bottom plate, which is beneficial to the reuse of the bottom plate;

[0025] 2. The flanging design of the web bars enables the web bars to be more firmly connected to the upper chord steel bars and the lower chord steel bars;

[0026] 3. Rotate the limiting block so that the direction of the limiting block is consistent with the direction of the limiting hole, pass the limiting block through the limiting hole. At this time, the limiting block is located in the receiving groove, and then rotate the limiting block so that the limiting block is misaligned with the limiting hole, so as to limit the bottom plate on the lower chord steel bar through the limiting block; When the limiting block is misaligned with the limiting hole, at this time the locking bolt is facing the first thread groove, rotate the locking bolt so that the locking bolt is threadedly connected with the first thread groove, so as to lock the limiting block in the receiving groove, and then realize the detachable connection of the bottom plate on the lower chord steel bar. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the overall structure of the present application.

[0028] Figure 2 is Figure 1 a partial enlarged view of part A in

[0029] Description of the reference numerals: 1. Bottom plate; 11. Upper notch; 12. Lower notch; 13. Limiting hole; 14. Receiving groove; 141. First thread groove; 142. Cover plate; 143. Connecting ring; 2. Upper chord steel bar; 21. Lower chord steel bar; 211. Second thread groove; 22. Vertical steel bar; 23. Horizontal steel bar; 24. Web bar; 241. Lower flanging; 242. Upper flanging; 3. Limiting rod; 31. Connecting block; 311. Stud; 32. Limiting block; 33. Locking bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] The following will further describe the present application in detail Figure 1-2 with reference to the attached drawings.

[0031] The embodiment of the present application discloses a detachable truss floor slab for buildings. Refer to Figure 1 andFigure 2 , the detachable truss floor slab for construction includes a steel bar truss and a bottom plate 1 arranged on the bottom surface of the steel bar truss; a connecting component is arranged on the steel bar truss, the limiting end of the connecting component passes through the bottom plate 1 and is clamped with the bottom plate 1. When the limiting end of the connecting component limits the bottom plate 1, the locking end of the connecting component is connected to the bottom plate 1 to lock the bottom plate 1 on the steel bar truss, thereby realizing the detachable connection between the steel bar truss and the bottom plate 1.

[0032] Refer to Figure 1 and Figure 2 , the steel bar truss includes two longitudinally arranged lower chord steel bars 21 that are parallel to each other, an upper chord steel bar 2 arranged between the two lower chord steel bars 21 and above the lower chord steel bars 21, two vertically arranged vertical steel bars 22 fixedly connected to the opposite ends of the upper chord steel bar 2, a horizontal steel bar 23 fixedly connected between the two lower chord steel bars 21, and a web steel bar 24 fixedly connected between the upper chord steel bar 2 and the lower chord steel bars 21; there are two horizontal steel bars 23, the two horizontal steel bars 23 are respectively located at the two ends of the lower chord steel bars 21, and the mutually remote sides of the two horizontal steel bars 23 are respectively fixedly connected to the mutually close sides of the two vertical steel bars 22.

[0033] Refer to Figure 1 and Figure 2 , a triangular structure is formed between the upper chord steel bar 2 and the two lower chord steel bars 21, so that the overall structure of the steel bar truss can be more stable. There are two web steel bars 24, and the two web steel bars 24 are symmetrically arranged on the periphery of the upper chord steel bar 2; the web steel bar 24 is located between the two horizontal steel bars 23.

[0034] The web steel bar 24 is designed with a folded edge. Each web steel bar 24 is integrally formed with two horizontally bent lower folded edges 241. The top surface support position of the lower folded edge 241 corresponds to the lower chord steel bar 21 and is fixedly connected to the lower chord steel bar 21; an upper folded edge 242 is bent upward on the web steel bar 24 and between the two lower folded edges 241, and the upper folded edge 242 is fixedly connected to the periphery of the upper chord steel bar 2. Thus, under the connection action of the upper folded edge 242 and the lower folded edge 241, the upper chord steel bar 2 and the lower chord steel bar 21 can be more firmly connected together.

[0035] Refer to Figure 1 and Figure 2 , the bottom surface of the lower folded edge 241 abuts against the top surface of the bottom plate 1. There are multiple bottom plates 1 connected to the bottom surface of each steel bar truss. The adjacent two bottom plates 1 in the same longitudinal direction abut against each other, and the multiple bottom plates 1 are located on the same horizontal plane; the connecting component is arranged on the bottom surface of the lower chord steel bar 21, and the lower chord steel bar 21 and the bottom plate 1 are detachably connected through the connecting component. At the same time, in order to make the lower chord steel bar 21 more firmly connected to the bottom plate 1, there are four connecting components on the same bottom plate 1, and the four connecting components are distributed in a matrix.

[0036] Reference Figure 1 and Figure 2 , two adjacent bottom plates 1 located in the same horizontal direction are lapped and fitted. Upper notches 11 are formed at both top sides of the previous bottom plate 1, and lower notches 12 are formed at both bottom sides of the subsequent bottom plate 1. Through the mutual cooperation between the upper notches 11 and the lower notches 12, the lapping and fitting between two adjacent bottom plates 1 located in the same horizontal direction are realized.

[0037] Reference Figure 1 and Figure 2 , the connecting assembly includes a connecting block 31 arranged between the lower chord steel bar 21 and the bottom plate 1, a limiting rod 3 fixedly connected to the bottom surface of the connecting block 31, a limiting block 32 rotatably connected to the bottom end of the limiting rod 3, and a locking bolt 33 threadedly connected to the limiting block 32; a limiting hole 13 vertically penetrating the bottom plate 1 is formed on the top surface of the bottom plate 1, and the position of the limiting hole 13 corresponds to the position of the limiting block 32. Both the limiting block 32 and the limiting hole 13 are rectangular, and the cross-sectional area of the limiting block 32 is smaller than the cross-sectional area of the limiting hole 13; a receiving groove 14 communicating with the limiting hole 13 is formed on the bottom surface of the bottom plate 1. The receiving groove 14 is cylindrical, and the cross-sectional area of the receiving groove 14 is larger than the cross-sectional area of the limiting block 32, so that the limiting block 32 can rotate in the receiving groove 14. The notch of the receiving groove 14 is arranged downward, and a first thread groove 141 threadedly connected with the locking bolt 33 is formed on the inner top wall of the receiving groove 14.

[0038] Thus, rotate the limiting block 32 to make the direction of the limiting block 32 consistent with the direction of the limiting hole 13, and pass the limiting block 32 through the limiting hole 13. At this time, the limiting block 32 is located in the receiving groove 14, and then rotate the limiting block 32 to make the limiting block 32 misaligned with the limiting hole 13, so that the bottom plate 1 is limited on the lower chord steel bar 21 through the limiting block 32; when the limiting block 32 is misaligned with the limiting hole 13, at this time the locking bolt 33 is aligned with the first thread groove 141, rotate the locking bolt 33 to make the locking bolt 33 threadedly connected with the first thread groove 141, so as to lock the limiting block 32 in the receiving groove 14, and further realize the detachable connection of the bottom plate 1 to the lower chord steel bar 21.

[0039] After the locking bolt 33 is threadedly connected with the first thread groove 141, in order to make the head of the locking bolt 33 flush with the bottom surface of the limiting block 32, a counterbore corresponding to the position of the locking bolt 33 is formed on the bottom surface of the limiting block 32, and the head of the locking bolt 33 matches the counterbore. An internal hexagonal hole is formed on the bottom surface of the head of the locking bolt 33, and the setting of the internal hexagonal hole enables the staff to rotate the locking bolt 33 located in the counterbore through a tool.

[0040] Reference Figure 1 and Figure 2, in order to be able to cover the notch of the receiving groove 14, an internal thread is provided on the inner side wall of the receiving groove 14, and a cover plate 142 is threadedly connected to the receiving groove 14. When the cover plate 142 is covered at the notch of the receiving groove 14, the top surface of the cover plate 142 abuts against the bottom surface of the limiting block 32. At the same time, in order to facilitate the rotation of the cover plate 142, a connecting ring 143 is fixedly connected to the bottom surface of the cover plate 142.

[0041] A stud 311 is fixedly connected to the top surface of the connecting block 31, and a second thread groove 211 corresponding to the position of the stud 311 is opened on the bottom surface of the lower chord steel bar 21. The stud 311 is threadedly connected to the second thread groove 211 to realize the detachable connection between the connecting block 31 and the lower chord steel bar 21, and one end of the connecting block 31 away from the stud 311 abuts against the top surface of the bottom plate 1.

[0042] The implementation principle of a detachable truss floor slab for buildings in an embodiment of the present application is as follows: when it is necessary to disassemble the bottom plate 1 from the lower chord steel bar 21, the cover plate 142 is unscrewed through the connecting ring 143, and the locking bolt 33 is rotated by a tool so that the locking bolt 33 disengages from the first thread groove 141. Then, the limiting block 32 is rotated so that the direction of the limiting block 32 is the same as the direction of the limiting hole 13, thereby disassembling the bottom plate 1 from the steel bar truss, which is beneficial to the reuse of the bottom plate 1.

[0043] The above are all preferred embodiments of the present application. The protection scope of the present application is not limited hereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A detachable truss floor deck for construction, characterized in that: The invention comprises a steel bar truss and a bottom plate (1) arranged on the bottom surface of the steel bar truss, wherein a connection component is arranged on the steel bar truss, and a limiting end of the connection component passes through the bottom plate (1) and is clamped with the bottom plate (1). When the limiting end of the connection component limits the bottom plate (1), the locking end of the connection component is connected to the bottom plate (1) to lock the bottom plate (1) on the steel bar truss, thereby realizing a detachable connection between the steel bar truss and the bottom plate (1).

2. The detachable truss floor deck for construction according to claim 1, characterized in that: The steel bar truss comprises two lower chord steel bars (21) which are parallel to each other and arranged longitudinally, an upper chord steel bar (2) which is arranged between the two lower chord steel bars (21) and located above the lower chord steel bars (21), two vertical steel bars (22) which are arranged vertically and fixedly connected to opposite ends of the upper chord steel bars (2), a horizontal steel bar (23) which is fixedly connected between the two lower chord steel bars (21), and a web bar (24) which is fixedly connected between the upper chord steel bars (2) and the lower chord steel bars (21), wherein the upper chord steel bars (2) are fixed to the horizontal steel bars (23).

3. The detachable truss floor deck for construction according to claim 2, characterized in that: The web reinforcement (24) is integrally formed with a lower folded edge (241), the top surface of the lower folded edge (241) supports the corresponding lower chord steel bar (21) and is fixedly connected to the lower chord steel bar (21), and the web reinforcement (24) is upwardly bent with an upper folded edge (242), and the upper folded edge (242) is fixed to the peripheral side of the upper chord steel bar (2).

4. The detachable truss floor deck for construction according to claim 2, characterized in that: The connection assembly comprises a connection block (31) detachably connected to the bottom surface of the lower chord steel bar (21), a limiting rod (3) fixedly connected to the bottom surface of the connection block (31), a limiting block (32) rotatably connected to the bottom end of the limiting rod (3), and a locking bolt (33) threadedly connected to the limiting block (32); the bottom surface of the connection block (31) abuts against the top surface of the bottom plate (1); a limiting hole (13) is provided on the top surface of the bottom plate (1) for the limiting block (32) to pass through; the limiting block (32) and the limiting hole (13) are both rectangular; a receiving groove (14) is provided on the bottom surface of the bottom plate (1) and is connected to the limiting hole (13); and a first thread groove (141) threadedly connected to the locking bolt (33) is provided on the inner top wall of the receiving groove (14).

5. The detachable truss floor deck for construction according to claim 4, characterized in that: The bottom surface of the limit block (32) is provided with a countersunk hole matching the head of the locking bolt (33), and the bottom surface of the head of the locking bolt (33) is provided with a hexagonal hole.

6. The detachable truss floor deck for construction according to claim 4, characterized in that: A cover plate (142) for covering the notch of the accommodating groove (14) is threadedly connected to the accommodating groove (14).

7. The detachable truss floor deck for construction according to claim 4, characterized in that: A stud (311) is fixedly connected to the top surface of the connection block (31), and a second thread groove (211) threadably connected to the stud (311) is provided on the bottom surface of the lower chord steel bar (21).

8. The detachable truss floor deck for construction according to claim 2, characterized in that: A triangular structure is formed between the upper chord steel bar (2) and the two lower chord steel bars (21), so that the overall structure of the steel bar truss can be more stable.

Images