Steel bar truss floor support plate

Abstract

The utility model discloses a steel bar truss floor support plate which comprises a bottom formwork, two sets of lower chord steel bars are symmetrically arranged on the bottom formwork, an upper chord steel bar is arranged above the middle of the two sets of lower chord steel bars, web member steel bars matched with the lower chord steel bars are arranged on the two sides of the upper chord steel bar, connecting top ends are arranged at the top ends of the web member steel bars, and connecting bottom ends are arranged at the bottom ends of the web member steel bars. A connecting piece is arranged on the upper chord steel bar, the two ends of the connecting piece are clamped with the connecting top ends on the two sides, a limiting column is arranged on the bottom formwork in a matched mode, a clamping base is further included, a clamping groove matched with the lower chord steel bar is formed in the clamping base, and a detachable locking structure is arranged between the clamping base and the bottom formwork. According to the steel bar truss floor support plate, the welding procedure during installation of the steel bar truss floor support plate can be reduced, and the installation convenience and the installation efficiency of the steel bar truss floor support plate are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar truss floor decking plates, and more specifically, to a steel bar truss floor decking plate. Background Art

[0002] The truss made of steel bars as upper chord, lower chord and web members connected by resistance spot welding is called steel truss; the combined load-bearing plate connected to the bottom plate by resistance spot welding is called steel truss floor deck;

[0003] In the existing steel truss floor deck, the bottom plate and the upper steel bars, the web bars and the upper chord steel bars, and the web bars and the lower chord steel bars are connected mainly by welding machines. In this case, there are many welding points and the operation efficiency is low, resulting in poor installation convenience of the steel truss floor deck;

[0004] In addition, the bottom formwork is easily penetrated by welding, the galvanized layer is obviously damaged, and slurry leakage is easy to occur at the welding point when pouring concrete.

[0005] In addition, when in use, the upper chord steel bars, lower chord steel bars and web bars in the steel truss floor deck need to be welded to the bottom plate in advance, so that when the steel truss floor deck is laid, the lifting weight is large and it is inconvenient to use. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the problems existing in the prior art, the utility model provides a steel truss floor decking to solve the technical problems mentioned in the background technology that the steel truss floor decking in the prior art is welded, has many welding points, is difficult to install, and the bottom plate is easily welded through, resulting in leakage.

[0008] (II) Technical solution

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] A steel bar truss floor deck, comprising a bottom formwork, two groups of lower chord steel bars are symmetrically arranged on the bottom formwork, upper chord steel bars are arranged above the middle of the two groups of lower chord steel bars, web bars are arranged on both sides of the upper chord steel bars in coordination with the lower chord steel bars, the top of the web bars is provided with a connecting top, and the bottom is provided with a connecting bottom, the upper chord steel bars are provided with connecting pieces, the two ends of the connecting piece are engaged with the connecting tops on both sides, and a limiting column is arranged on the bottom formwork in coordination with the connecting bottom;

[0011] It also includes a snap-fit ​​seat, on which a snap-fit ​​groove is provided to match the lower chord steel bar, and a detachable locking structure is provided between the snap-fit ​​seat and the bottom template;

[0012] The ends of the upper chord steel bars and the lower chord steel bars are both provided with connecting sleeves, and a limited position connecting rod is provided between two adjacent groups of connecting sleeves.

[0013] The utility model is further configured such that the detachable locking structure includes a locking column, the bottom end of the locking column is threadedly locked with the bottom template, the top end passes through the snap-fit ​​seat and is threadedly provided with a locking nut, a rotation limiting structure is provided between the locking column and the snap-fit ​​seat, and the stable installation of the snap-fit ​​seat on the bottom template plate can be achieved through the cooperation of the locking column and the locking nut.

[0014] The utility model is further configured such that the rotation limiting structure includes a limiting block, and the bottom end of the engaging seat cooperates with the limiting block to form a limiting groove, and the connection stability between the locking column and the engaging seat can be improved through the cooperation of the limiting block and the limiting groove.

[0015] The utility model is further configured such that the connecting piece includes a connecting arc segment that is engaged with the upper chord steel bar, and engaging hooks are arranged at the bottom ends on both sides of the connecting arc segment in the opposite direction and upward, and the connecting top end is engaged with the engaging hooks. Through the arrangement of the connecting arc segment and the engaging hooks, a quick and stable connection between the web steel bar and the upper chord steel bar can be achieved.

[0016] The utility model is further configured as follows: a limited position support rod is arranged between the two groups of lower chord steel bars, limited position support blocks are arranged on both sides of the limited position support rod, and a connecting groove is provided at the bottom end of the limited position support block to cooperate with the lower chord steel bars. The cooperation between the limited position support block and the limited position support rod can improve the stable installation between the two groups of lower chord steel bars.

[0017] The utility model is further configured such that the limiting support rod includes a connecting column connected to the limiting support block, and an adjusting column is threadedly arranged between the two groups of the connecting columns. The flexible adjustment of the distance between the two groups of limiting support blocks can be improved through the cooperation of the connecting column and the adjusting column.

[0018] The utility model is further configured that the surface of the adjusting column is provided with anti-skid patterns, and the anti-skid property of the anti-skid patterns when twisting can be improved by providing the anti-skid patterns.

[0019] The utility model is further configured that a limiting ring is arranged on the upper chord steel bar to cooperate with the connecting arc segment, and the installation stability of the connecting piece on the upper chord steel bar can be improved by the setting of the limiting ring.

[0020] (III) Beneficial effects

[0021] Compared with the prior art, the utility model provides a steel bar truss floor deck, which has the following beneficial effects:

[0022] 1. The utility model includes a bottom template, on which two groups of lower chord steel bars are symmetrically arranged, and an upper chord steel bar is arranged above the middle part of the two groups of lower chord steel bars, and web bars are arranged on both sides of the upper chord steel bars to cooperate with the lower chord steel bars, and a connecting top is arranged at the top of the web bar steel bar, and a connecting bottom is arranged at the bottom end, and a connecting piece is arranged on the upper chord steel bar, and the two ends of the connecting piece are engaged with the connecting tops on both sides, and a limiting column is arranged on the bottom template to cooperate with the connecting bottom end, wherein the connecting bottom end is located below the lower chord steel bar. In this way, when the solid web bar steel bar is installed, the connecting top on the top of the web bar and the upper chord steel bar can be connected by the connecting piece. In this way, there is no need to weld the connecting top and the upper chord steel bar, thereby improving the convenience of connection between the web bar steel bar and the upper chord steel bar, and at the same time, the limiting column is used to realize the limiting of the connecting bottom end of the web bar steel bar, so that the web bar steel bar can be stably installed.

[0023] 2. The utility model also includes a snap-fit ​​seat, on which a snap-fit ​​groove is provided to cooperate with the lower chord steel bar, and a detachable locking structure is provided between the snap-fit ​​seat and the bottom template. The snap-fit ​​seat is snapped onto the lower chord steel bar through the snap-fit ​​groove, and the snap-fit ​​seat is fixed to the bottom template through the detachable locking structure, so that the lower chord steel bar can be installed and fixed on the bottom template.

[0024] 3. The utility model provides connecting sleeves at the ends of the upper-chord steel bars and the lower-chord steel bars, and a limited connecting rod is provided between two adjacent groups of connecting sleeves. The connecting sleeves are provided at the ends of the upper-chord steel bars and the lower-chord steel bars. The limited connecting rod cooperates with the connecting sleeve to achieve a stable connection between the upper-chord steel bars and the lower-chord steel bars, so that after the stable installation of the lower-chord steel bars is achieved, the stable installation of the upper-chord steel bars can be achieved simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the overall structure of a steel truss floor deck in the utility model;

[0026] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0027] Figure 3 It is a schematic diagram of the partial connection structure between the lower chord steel bar, the limiting support rod and the limiting support block in the utility model;

[0028] Figure 4 It is a cross-sectional schematic diagram of a partial connection structure between the locking seat and the bottom template in the utility model;

[0029] Figure 5 It is a schematic diagram of the overall structure of the connecting piece in the utility model.

[0030] In the figure: 1. bottom template; 2. lower chord steel bar; 3. upper chord steel bar; 4. web bar steel bar; 5. top connection; 6. bottom connection; 7. connector; 8. limit column; 9. snap-fit ​​seat; 10. snap-fit ​​groove; 11. connecting sleeve; 12. limit connecting rod; 13. locking column; 14. locking nut; 15. limit block; 16. limit groove; 17. connecting arc segment; 18. snap-fit ​​hook; 19. limit support rod; 20. limit support block; 21. connecting groove; 22. connecting column; 23. adjusting column; 24. anti-slip pattern; 25. limit ring. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0033] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0034] See also Figure 1-5 The slab of the steel bar truss floor comprises a bottom formwork 1, on which two groups of lower chord steel bars 2 are symmetrically arranged, and an upper chord steel bar 3 is arranged above the middle of the two groups of lower chord steel bars 2, and web bars 4 are arranged on both sides of the upper chord steel bars 3 to cooperate with the lower chord steel bars 2, and a connecting top 5 is arranged at the top of the web bars 4, and a connecting bottom 6 is arranged at the bottom end, and a connecting piece 7 is arranged on the upper chord steel bars 3, and the two ends of the connecting piece 7 are engaged with the connecting top 5 at both sides, and a limiting column 8 is arranged on the bottom formwork 1 to cooperate with the connecting bottom 6, wherein the connecting bottom 6 is located below the lower chord steel bars 2. In this way, when the solid web bar steel bars 4 are installed, the connecting top 5 on the top of the web bar and the upper chord steel bars 3 can be connected by the connecting piece 7. In this way, the connection between the upper chord steel bars 3 and the upper chord steel bars 3 can be realized without welding the connecting top 5 and the upper chord steel bars 3, thereby improving the convenience of connection between the web bars 4 and the upper chord steel bars 3, and at the same time, the limiting column 8 is used to realize the limiting of the connecting bottom 6 of the web bars 4, so that the web bars 4 can be stably installed;

[0035] The utility model also includes a snap-fit ​​seat 9, on which a snap-fit ​​groove 10 is provided to cooperate with the lower chord steel bar 2, and a detachable locking structure is provided between the snap-fit ​​seat 9 and the bottom template 1. The snap-fit ​​seat 9 is snap-fitted to the lower chord steel bar 2 through the snap-fit ​​groove 10, and the snap-fit ​​seat 9 is fixed to the bottom template 1 through the detachable locking structure, so that the lower chord steel bar 2 can be installed and fixed on the bottom template 1.

[0036] The utility model is provided with connecting sleeves 11 at the ends of the upper-chord steel bars 3 and the lower-chord steel bars 2, and a limited connecting rod 12 is provided between two adjacent groups of connecting sleeves 11. The connecting sleeves 11 are sleeved on the ends of the upper-chord steel bars 3 and the lower-chord steel bars 2. The limited connecting rod 12 cooperates with the connecting sleeves 11 to achieve a stable connection between the upper-chord steel bars 3 and the lower-chord steel bars 2, so that after the stable installation of the lower-chord steel bars 2 is achieved, the stable installation of the upper-chord steel bars 3 is achieved simultaneously.

[0037] See also Figure 1-Figure 5 As an implementation of the detachable locking structure: the detachable locking structure includes a locking column 13, the bottom end of the locking column 13 is threadedly locked with the bottom template 1, and the top end passes through the snap-fit ​​seat 9 and is threadedly provided with a locking nut 14, a rotation limiting structure is provided between the locking column 13 and the snap-fit ​​seat 9, wherein the rotation limiting structure includes a limiting block 15, and the bottom end of the snap-fit ​​seat 9 cooperates with the limiting block 15 to form a limiting groove 16.

[0038] When the snap-fit ​​seat 9 is installed and fixed on the bottom template 1, the locking column 13 is first screwed on the bottom template 1, and then the snap-fit ​​seat 9 is snap-fitted on the locking column 13, and the limiting block 15 is snap-fitted and fixed in the limiting groove 16 on the snap-fit ​​seat 9 and extends upward, and then the locking nut 14 is screwed on the top of the locking column 13, so that the snap-fit ​​seat 9 is locked and fixed on the bottom template 1;

[0039] In this way, the locking column 13 can be screwed and limited by the cooperation between the limiting block 15 and the limiting groove 16 , thereby improving the installation stability of the engaging seat 9 on the bottom template 1 .

[0040] See also Figure 1-Figure 5 As an implementation of the connecting member 7: the connecting member 7 includes a connecting arc segment 17 that is engaged with the upper chord steel bar 3, and the bottom ends of both sides of the connecting arc segment 17 are provided with engaging hooks 18 in the opposite direction upward, and the connecting top end 5 is engaged with the engaging hooks 18.

[0041] The connector 7 is placed on the upper chord reinforcement 3 through the connecting arc segment 17, and the downward movement of the connector 7 is limited by the upper chord reinforcement 3. Then, the connecting top pipe of the web reinforcement 4 is engaged and hung on the engaging hook 18, thereby realizing the connection between the connecting top 5 of the web reinforcement 4 and the upper chord reinforcement 3.

[0042] See also Figure 1-Figure 5 As an implementation method for the lower chord steel bars 2: a limited position support rod 19 is arranged between two groups of lower chord steel bars 2, limited position support blocks 20 are arranged on both sides of the limited position support rod 19, and a connecting groove 21 is opened at the bottom end of the limited position support block 20 to cooperate with the lower chord steel bars 2.

[0043] Specifically, the limiting block 15 is engaged on the lower chord steel bar 2 through the connecting groove 21, and the position of the limiting block is limited by the limiting support rod 19, so that the distance between the two groups of lower chord steel bars 2 can be limited, and the installation stability of the lower chord steel bars 2 can be improved.

[0044] See also Figure 1-Figure 5 As an implementation of the limiting support rod 19 , the limiting support rod 19 includes a connecting column 22 connected to the limiting support block 20 , and an adjusting column 23 is threadedly arranged between the two groups of connecting columns 22 .

[0045] By rotating the adjusting column 23 and engaging the threaded connection between the adjusting column 23 and the connecting column 22 , the distance between the two sets of limiting support blocks 20 can be flexibly adjusted.

[0046] See also Figure 1-Figure 5 As an implementation of the adjusting column 23 , the surface of the adjusting column 23 is provided with anti-slip grooves 24 to improve the anti-slip property of the adjusting column 23 when being screwed.

[0047] See also Figure 1-Figure 5 As an implementation method of the upper chord reinforcement 3 : a limiting ring 25 is provided on the upper chord reinforcement 3 to cooperate with the connecting arc segment 17 .

[0048] Specifically, the limiting ring 25 can improve the stability of the connecting member 7 when it is installed on the upper chord steel bar 3.

[0049] In summary, when the overall equipment is in use:

[0050] The upper chord steel bar 3 and the lower chord steel bar 2 are connected by the connection sleeve 11 and the limit connection rod 12 to form a stable triangular structure;

[0051] Afterwards, the connector 7 is clamped and placed on the upper chord steel bar 3, so that the connecting arc segment 17 is located at the top of the upper chord steel bar 3, and then the web bar 4 is located between the upper chord steel bar 3 and the lower chord steel bars 2 on both sides, so that the connecting top end 5 at the top of the web bar 4 is clamped on the clamping hook 18, and the bottom end is located at the bottom end of the lower chord steel bar 2, and is clamped and sleeved on the limit column 8;

[0052] Afterwards, the engaging seat 9 is engaged with the lower chord steel bar 2 through the engaging groove 10, and the bottom end of the locking column 13 is screwed onto the bottom template 1. Then, the engaging seat 9 is engaged with the locking column 13, and the limiting block 15 is engaged and fixed in the limiting groove 16 on the engaging seat 9 and extends upward. Then, the locking nut 14 is screwed on the top of the locking column 13, so as to realize the locking and fixing of the engaging seat 9 on the bottom template 1. Here, the locking column 13 can be limited to rotate relative to the engaging seat 9 through the cooperation of the limiting block 15 and the limiting groove 16. The locking column 13 can be limited to rotate relative to the bottom template 1 through the limiting connection between the engaging seat 9 and the lower chord steel bar 2, so as to realize the screwing limit of the locking column 13, thereby improving the installation stability of the engaging seat 9 on the bottom template 1;

[0053] The utility model can reduce the demand for welding points of the steel bar truss floor decking plate when in use, improve the convenience of use and installation, and has good stability.

[0054] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A steel truss floor deck, comprising a bottom formwork (1), two groups of lower chord steel bars (2) are symmetrically arranged on the bottom formwork (1), upper chord steel bars (3) are arranged above the middle of the two groups of lower chord steel bars (2), and web bars (4) are arranged on both sides of the upper chord steel bars (3) in coordination with the lower chord steel bars (2), wherein: The top end of the web reinforcement (4) is provided with a connecting top end (5), and the bottom end is provided with a connecting bottom end (6); the upper chord reinforcement (3) is provided with a connecting piece (7); the two ends of the connecting piece (7) are engaged with the connecting top ends (5) on both sides; and the bottom template (1) is provided with a limiting column (8) in coordination with the connecting bottom end (6); It also comprises a snap-fit ​​seat (9), a snap-fit ​​groove (10) is provided on the snap-fit ​​seat (9) to cooperate with the lower chord steel bar (2), and a detachable locking structure is provided between the snap-fit ​​seat (9) and the bottom template (1); The ends of the upper chord steel bars (3) and the lower chord steel bars (2) are both provided with connecting sleeves (11), and a limited position connecting rod (12) is provided between two adjacent groups of connecting sleeves (11).

2. The steel bar truss floor deck according to claim 1 is characterized in that: The detachable locking structure comprises a locking column (13), the bottom end of the locking column (13) is threadedly locked with the bottom template (1), and the top end passes through the snap-fit ​​seat (9) and is threadedly provided with a locking nut (14), and a rotation limiting structure is provided between the locking column (13) and the snap-fit ​​seat (9).

3. The steel bar truss floor deck according to claim 2 is characterized in that: The rotation limiting structure comprises a limiting block (15), and a limiting groove (16) is formed at the bottom end of the engaging seat (9) in cooperation with the limiting block (15).

4. The steel bar truss floor deck according to claim 1 is characterized in that: The connecting member (7) comprises a connecting arc segment (17) which is engaged with the upper chord steel bar (3), and engaging hooks (18) are arranged at the bottom ends of both sides of the connecting arc segment (17) facing upward in the opposite direction, and the connecting top end (5) is engaged with the engaging hooks (18).

5. A steel truss floor deck according to any one of claims 1 to 4, characterized in that: A limited position support rod (19) is arranged between the two groups of lower chord steel bars (2), and limited position support blocks (20) are arranged on both sides of the limited position support rod (19). The bottom end of the limited position support block (20) is provided with a connection groove (21) to cooperate with the lower chord steel bars (2).

6. The steel bar truss floor deck according to claim 5 is characterized in that: The limiting support rod (19) comprises a connecting column (22) connected to the limiting support block (20), and an adjusting column (23) is threadedly arranged between two groups of the connecting columns (22).

7. The steel bar truss floor deck according to claim 6 is characterized by: The surface of the adjusting column (23) is provided with anti-slip grooves (24).

8. The steel bar truss floor deck according to claim 1 is characterized in that: A limiting ring (25) is provided on the upper chord steel bar (3) to cooperate with the connecting arc segment (17).

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