Clamping type steel bar truss floor support plate

Abstract

The utility model relates to the technical field of steel bar trusses, in particular to a clamping type steel bar truss floor support plate which comprises a bottom plate, a plurality of sets of sliding openings are formed in the bottom plate, each set of sliding openings comprises two rows which are arranged in parallel, each row is provided with a plurality of sliding openings, and connecting blocks are installed in the sliding openings in a sliding mode. Each group of sliding ports is connected with a group of steel bar trusses through corresponding connecting blocks, clamping ports are formed in the connecting blocks, two mounting grooves are formed in the inner walls of the two sides of each clamping port, clamping units are mounted in the two mounting grooves, and the connecting blocks are detachably connected with the steel bar trusses through the clamping units. According to the utility model, the lower chord steel bar and the bottom plate can be conveniently and quickly separated, and the problem of manpower resource waste caused by dismounting the bottom plate in the later period due to the fact that the clamping blocks are fixed by bolts is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of steel bar trusses, in particular to a clamping type steel bar truss floor deck. Background Art

[0002] Steel truss floor deck is a structural element composed of steel bars, widely used in the fields of architecture and engineering to support and distribute loads. They are usually composed of multiple steel bars connected to each other to form a triangular mesh structure, which can provide high strength and good stability.

[0003] In the prior art, a steel truss floor deck is composed of a base plate, an upper chord, two lower chords, and a plurality of web members, wherein the base plate serves as a mounting plate at the bottom of the two lower chords. In order to save costs, the base plate is usually a wooden structure. When connected to the steel truss, bolts are usually used to install the clamping parts one by one on the upper side of the mounting plate, and then the steel truss is clamped and mounted on the upper side of the base plate through these clamping parts for use. After the concrete of the steel truss is poured and solidified, the base plate of the wooden structure needs to be disassembled. When disassembling, the bolts at the bottom of the base plate need to be unscrewed to release the connection with the clamping parts, and the base plate of the wooden structure needs to be removed from the solidified concrete. When tightening the bottom bolts, they need to be removed manually one by one. The disassembly operation is relatively cumbersome and easily causes a waste of human resources. Therefore, a clamping type steel truss floor deck is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a clamping type steel bar truss floor deck to solve the problems raised in the above background technology.

[0005] The technical solution of the utility model is:

[0006] A snap-on steel bar truss floor deck, comprising a bottom plate, the bottom plate is provided with a plurality of sliding openings, each group of sliding openings comprises two parallel rows, each row is provided with a plurality of sliding openings, a connection block is slidably installed in the sliding openings, each group of sliding openings is connected with a group of steel bar trusses through a corresponding connection block, a snap-on interface is provided on the connection block, two installation grooves are provided on the inner walls on both sides of the snap-on interface, a snap-on unit is installed in each of the two installation grooves, and the connection block is detachably connected with the steel bar truss through the snap-on unit;

[0007] A contraction assembly is arranged inside the bottom plate, and the contraction assembly includes a top plate, and the top plate is fixedly connected to the bottom of the connection block corresponding to one set of sliding ports, and the lower side of the top plate is connected to a driving unit, and the driving unit includes a screw rod, and the screw rod is rotatably connected to the top plate, and a threaded tube is threadedly installed on the surface of the screw rod, and a gear is fixedly installed on the bottom end of the threaded tube, and the lower side of the gear is rotatably installed on the inner bottom wall of the bottom plate;

[0008] The driving unit also includes two racks, the gear is meshed with the two racks, one or more adjustment plates are fixedly connected to the upper side of the racks, the adjustment plates are movably arranged inside the bottom plate, a group of support rods are rotatably connected to the adjustment plates, each group of support rods is arranged in two rows, and the upper ends of the support rods are arranged in a one-to-one correspondence with the connecting blocks and are rotatably connected.

[0009] The clamping unit includes two telescopic rods, both of which are fixedly installed in the mounting grooves, a return spring is sleeved on the surface of the telescopic rod, a baffle is fixedly installed on the inner wall of the mounting groove, a telescopic opening is opened on one side of the baffle, one end of the telescopic rod is fixedly connected to the mounting groove, and the other end slides through the telescopic opening and is fixedly installed with a clamping block, and the return spring is arranged between the telescopic rod and the baffle.

[0010] The clamping block is a spherical block.

[0011] The steel truss includes two lower chord steel bars, which are respectively clamped in the clamping interfaces of two columns of connecting blocks in the same group and can be limited by the clamping blocks of two clamping units of the connecting blocks. A plurality of web steel bars are fixedly installed on the surfaces of the two lower chord steel bars, and the same upper chord steel bar is fixedly installed on the surfaces of the plurality of web steel bars.

[0012] A rotating hole is opened on the lower side of the bottom plate, a connecting rod is rotatably installed in the rotating hole, the top end of the connecting rod is fixedly connected to the lower side of the gear, a rotating disk is fixedly installed on the bottom end of the connecting rod, and a plurality of rotating handles are fixedly installed on the lower side of the rotating disk.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, the rotating disk is driven to rotate by rotating the handle, the rotating disk drives the connecting rod to rotate, the connecting rod drives the gear to rotate, the gear drives the two racks to move, and the two racks respectively drive the two adjusting plates to move, so that the two adjusting plates are close to each other, and the two adjusting plates drive multiple support rods to rotate, so that the angle between the support rods and the adjusting plates is gradually reduced, and the support rods drive the two groups of connecting blocks on the left and right sides of the bottom plate to shrink downward at the same time. During the shrinkage, the clamping block is subjected to a downward force in the groove of the solidified concrete. At this time, the clamping block begins to shrink in the groove and the clamping block is completely retracted into the installation groove, completing the unlocking of the connecting block, thereby shrinking the connecting blocks on the left and right sides of the bottom plate, making it easy to quickly separate the lower chord steel bar from the bottom plate, avoiding the use of bolts to fix the clamping block, resulting in a waste of human resources when disassembling the bottom plate at a later stage.

[0015] 2. In the utility model, the threaded tube is driven to rotate by the rotation of the gear, the threaded tube drives the threaded rod to move downward, the threaded rod drives the top plate to move downward, and the top plate drives a group of connecting blocks in the middle of the bottom plate to retract downward, thereby releasing the connection between the group of connecting blocks and the lower chord steel bars, further improving the disassembly rate of the lower chord steel bars and improving the efficiency of later disassembly of the bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the cutaway structure of the utility model;

[0019] Figure 3 It is a cutaway schematic diagram of some structures in the utility model;

[0020] Figure 4 It is a schematic diagram of the cutaway structure of the connecting block in the utility model.

[0021] Description of reference numerals:

[0022] 1. Bottom plate; 2. Connecting block; 3. Upper chord reinforcement; 4. Support rod; 5. Adjusting plate; 6. Rack; 7. Gear; 8. Threaded pipe; 9. Screw; 10. Top plate; 11. Turning plate; 12. Turning handle; 13. Telescopic rod; 14. Snap-in block; 15. Return spring; 16. Baffle; 17. Connecting rod; 18. Web reinforcement; 19. Lower chord reinforcement. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with specific embodiments. However, people familiar with the art should understand that the detailed description given here in conjunction with the drawings is for better explanation, and the structure of the present invention necessarily exceeds these limited embodiments. For some equivalent replacement schemes or common means, they are no longer described in detail herein, but still fall within the scope of protection of the present application.

[0024] Figure 1~Figure 4 It is the best embodiment of the utility model, and the following Figure 1 ~Attached Figure 4 The utility model is further described.

[0025] like Figure 1~Figure 4As shown, a snap-on steel bar truss floor decking plate includes a bottom plate 1, and three groups of sliding openings are provided on the bottom plate 1, each group of sliding openings includes two parallel rows, and each row is provided with a plurality of sliding openings. Connecting blocks 2 are slidably installed in the sliding openings, and the connecting blocks 2 correspond to the sliding openings one by one and the two slide in a sealed manner, and each group of sliding openings is connected to a group of steel bar trusses through the corresponding connecting blocks 2. A snap-on interface is provided on the connecting block 2, and two installation grooves are provided on the inner walls on both sides of the snap-on interface, and snap-on units are installed in the two installation grooves, and the connecting block 2 is detachably connected to the steel bar truss through the snap-on unit, and the connecting block 2 can be separated from the steel bar truss when pulled downward by an external force.

[0026] The bottom plate 1 is provided with a contraction assembly inside, which includes a top plate 10, which is fixedly connected to the bottom of the connection block 2 corresponding to the middle group of sliding ports, and a driving unit is connected to the lower side of the top plate 10, and the driving unit includes a screw rod 9, which is rotatably connected to the top plate 10, and a threaded tube 8 is screwed on the surface of the screw rod 9, and a gear 7 is fixedly installed on the bottom end of the threaded tube 8, and the lower side of the gear 7 is rotatably installed on the inner bottom wall of the bottom plate 1; the driving unit also includes two racks 6, and the gear 7 is meshed with the two racks 6, and the racks 6 are slidably arranged on the inner bottom wall of the bottom plate 1. When the gear 7 rotates, the two racks 6 are driven to move closer to or farther from each other, so that the two adjustment plates 5 move closer to or farther from each other. An adjustment plate 5 is fixedly connected to the upper side of the rack 6, and the adjustment plate 5 is movably arranged inside the base plate 1. A group of support rods 4 are rotatably connected to the adjustment plate 5, and each group of support rods 4 is arranged in two rows. The upper ends of the support rods 4 are arranged in a one-to-one correspondence with the connecting blocks 2 and are rotatably connected through a hinge shaft. The support rods 4 and the adjustment plate 5 are also rotatably connected by a hinge shaft.

[0027] A rotating hole is provided at the lower side of the bottom plate 1, a connecting rod 17 is rotatably installed in the rotating hole, the top end of the connecting rod 17 is fixedly connected to the lower side of the gear 7, a rotating disk 11 is fixedly installed at the bottom end of the connecting rod 17, and a plurality of rotating handles 12 are fixedly installed at the lower side of the rotating disk 11. The rotating handles 12 are installed at equal intervals at the lower side of the rotating disk 11, and a total of four are installed, and a rubber sleeve is installed on each rotating handle 12 for easy grasping.

[0028] The clamping unit includes two telescopic rods 13, both of which are fixedly installed in the mounting grooves, a return spring 15 is sleeved and installed on the surface of the telescopic rod 13, a baffle 16 is fixedly installed on the inner wall of the mounting groove, a telescopic opening is opened on one side of the baffle 16, one end of the telescopic rod 13 is fixedly connected to the mounting groove, and the other end slides through the telescopic opening and is fixedly installed with a clamping block 14, and the return spring 15 is arranged between the telescopic rod 13 and the baffle 16. The clamping block 14 is a spherical block.

[0029] When the concrete solidifies, a hemispherical groove will be formed at the position of the clamping block 14. At this time, if the clamping block 14 is pulled downward, the clamping block 14 will be squeezed and contracted, and will not get stuck due to the solidification of the concrete.

[0030] The steel truss includes two lower chord steel bars 19, which are respectively clamped in the clamping interfaces of two columns of connecting blocks 2 in the same group, and can be limited by the clamping blocks 14 of the two clamping units of the connecting blocks 2. A plurality of web steel bars 18 are fixedly installed on the surfaces of the two lower chord steel bars 19, and the surfaces of the plurality of web steel bars 18 are fixedly installed with the same upper chord steel bar 3.

[0031] The working principle and use of the utility model are as follows: when using it, firstly, it is necessary to sequentially clamp and install the steel trusses with two lower chord steel bars 19 as a group in order from left to right, and install them on the connecting block 2 on the upper side of the bottom plate 1 at equal intervals, and then lay these installed steel truss floor decks flat on the frame of the building without leaving any spacing, so as to ensure that the concrete can be laid flat normally. When the concrete is solidified and fixed, manually climb onto the bracket, approach and hold the rotating handle 12 with both hands to rotate;

[0032] When the handle 12 is rotated, the rotating disk 11 is driven to rotate, the rotating disk 11 drives the connecting rod 17 to rotate, the connecting rod 17 drives the gear 7 to rotate, the gear 7 drives the two racks 6 to rotate, and the two racks 6 respectively drive the two adjustment plates 5 to move, so that the two adjustment plates 5 are close to each other, and the two adjustment plates 5 drive the multiple support rods 4 to rotate, so that the angle between the support rods 4 and the adjustment plates 5 is gradually reduced, and the support rods 4 drive the two groups of connection blocks 2 on the left and right sides of the bottom plate 1 to shrink downward at the same time. During the shrinkage, the clamping block 14 is subjected to a downward force in the groove of the solidified concrete. At this time, the clamping block 14 begins to shrink in the groove and the clamping block 14 is completely retracted into the installation groove, so that the connection blocks 2 on the left and right sides of the bottom plate 1 are shrunk downward along the sliding opening, so that the clamping block 14 and the lower chord steel bar 19 are gradually separated;

[0033] When the gear 7 rotates, the threaded tube 8 is also driven to rotate, the threaded tube 8 drives the screw rod 9 to move downward, the screw rod 9 drives the top plate 10 to move downward, the top plate 10 drives a group of connecting blocks 2 in the middle position of the bottom plate 1 to shrink downward, thereby releasing the connection between the connecting block 2 and the lower chord steel bar 19. When the rotating disk 11 is rotated to the maximum angle, the rotating handle 12 is pulled downward to quickly peel off the bottom plate 1 and the components except the steel truss from the solidified concrete, thereby completing the rapid separation of the bottom plate 1.

Claims

1. A snap-on steel bar truss floor deck, comprising a bottom plate (1), characterized in that: The bottom plate (1) is provided with a plurality of sliding openings, each group of sliding openings comprises two parallel rows, each row is provided with a plurality of sliding openings, a connection block (2) is slidably installed in each of the sliding openings, each group of sliding openings is connected to a group of steel bar trusses via a corresponding connection block (2), a card interface is provided on the connection block (2), two installation grooves are provided on the inner walls on both sides of the card interface, a card connection unit is installed in each of the two installation grooves, and the connection block (2) is detachably connected to the steel bar truss via the card connection unit; A contraction assembly is arranged inside the bottom plate (1), and the contraction assembly comprises a top plate (10), the top plate (10) is fixedly connected to the bottom of a connection block (2) corresponding to one of the sets of sliding openings, the lower side of the top plate (10) is connected to a driving unit, the driving unit comprises a screw rod (9), the screw rod (9) is rotatably connected to the top plate (10), a threaded tube (8) is threadedly mounted on the surface of the screw rod (9), a gear (7) is fixedly mounted on the bottom end of the threaded tube (8), and the lower side of the gear (7) is rotatably mounted on the inner bottom wall of the bottom plate (1); The drive unit further comprises two racks (6), the gear (7) meshing with the two racks (6), one or more adjustment plates (5) being fixedly connected to the upper side of the racks (6), the adjustment plates (5) being movably arranged inside the bottom plate (1), a group of support rods (4) being rotatably connected to the adjustment plates (5), each group of support rods (4) being arranged in two rows, the upper ends of the support rods (4) being arranged in one-to-one correspondence with the connection blocks (2) and being rotatably connected.

2. The clip-on steel bar truss floor deck according to claim 1, characterized in that: The clamping unit comprises two telescopic rods (13), both of which are fixedly mounted in mounting grooves, a return spring (15) being sleeved and mounted on the surface of the telescopic rod (13), a baffle (16) being fixedly mounted on the inner wall of the mounting groove, a telescopic opening being provided on one side of the baffle (16), one end of the telescopic rod (13) being fixedly connected to the mounting groove, and the other end slidingly passing through the telescopic opening and fixedly mounted with a clamping block (14), and the return spring (15) being arranged between the telescopic rod (13) and the baffle (16).

3. The clip-on steel bar truss floor deck according to claim 2 is characterized in that: The clamping block (14) is a spherical block.

4. The snap-on steel bar truss floor deck according to claim 2, characterized in that: The steel bar truss comprises two lower chord steel bars (19), the two lower chord steel bars (19) being respectively clamped in clamping interfaces of two rows of connection blocks (2) of the same group and being capable of being limited in position by clamping blocks (14) of two clamping units of the connection blocks (2), a plurality of web steel bars (18) being fixedly mounted on the surfaces of the two lower chord steel bars (19), and a same upper chord steel bar (3) being fixedly mounted on the surfaces of the plurality of web steel bars (18).

5. The clip-on steel bar truss floor deck according to claim 1, characterized in that: A rotating hole is provided on the lower side of the bottom plate (1), a connecting rod (17) is rotatably mounted in the rotating hole, the top end of the connecting rod (17) is fixedly connected to the lower side of the gear (7), a rotating disk (11) is fixedly mounted on the bottom end of the connecting rod (17), and a plurality of rotating handles (12) are fixedly mounted on the lower side of the rotating disk (11).

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