Screw-free cement cushion block connecting piece for quickly detaching truss floor plate

Abstract

The utility model discloses a screw-free cement cushion block connecting piece for quickly detaching a truss floor plate, and belongs to the field of building steel structure construction.The connecting piece comprises a hanging piece used for being connected with a wooden bottom plate and an insertion hole formed in the wooden bottom plate in advance and matched with the hanging piece, and the hanging piece comprises a cross beam; a first connecting part and a second connecting part which are used for clamping steel bars are fixedly installed at the two ends of the cross beam respectively, the first connecting part and the second connecting part are arranged towards the same side of the cross beam, and two inserting parts which are symmetrically arranged and matched with the inserting holes of the wooden bottom plate are fixedly installed at the two ends of the cross beam. According to the connecting piece, the inserting hole in the wooden bottom plate is aligned with the inserting part to be inserted, locking of the wooden bottom plate and the cross beam is completed, then the cement cushion block is inserted between the bottom of the cross beam and the wooden bottom plate from the side face, the wooden bottom plate and the cross beam are supported, concrete pouring is convenient, bolt fixing is not needed in the process, direct inserting connection is achieved, and construction is convenient; construction efficiency is greatly improved, and bolt cost is saved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building steel structure construction, and particularly relates to a cement cushion connecting piece of a screw-free quick disassembly truss floor slab. BACKGROUND

[0002] A truss made of upper chords, lower chords and web members and connected through resistance spot welding is called a steel bar truss. A combined load-bearing plate formed by connecting a steel bar truss and a bottom plate through resistance spot welding is called a steel bar truss floor support plate. The bottom plate of the truss floor support plate generally has two types of bottom plates, namely a cement bottom plate and a wood plate. The fabricated steel bar truss floor support plate can significantly reduce the amount of on-site steel bar binding work, accelerate the construction progress, increase the construction safety guarantee, and realize civilized construction.

[0003] The prior art usually needs to use a large number of bolts to drill and connect the wood bottom plate, which is time-consuming and laborious, is not conducive to improving the efficiency, and has certain defects.

[0004] Therefore, the application provides a cement cushion connecting piece of a screw-free quick disassembly truss floor slab to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] The application provides a cement cushion connecting piece of a screw-free quick disassembly truss floor slab, and aims to solve the problems that the prior art needs to use a large number of bolts to drill and connect the wood bottom plate, which is time-consuming and laborious, is not conducive to improving the efficiency, and has certain defects.

[0006] To achieve the above purpose, the application provides the following technical scheme: a cement cushion connecting piece of a screw-free quick disassembly truss floor slab, comprising a hanging piece for connecting a wood bottom plate, and a socket matched with the hanging piece and preset on the wood bottom plate:

[0007] The hanging piece comprises a crossbeam, first and second connecting portions for clamping steel bars are fixedly installed at two ends of the crossbeam respectively, the first and second connecting portions are arranged towards the same side of the crossbeam, two symmetrically arranged insertion portions which are adapted to the insertion holes of the wooden base plate are fixedly installed at the two ends of the crossbeam, the insertion portions are inserted into the insertion holes, the two insertion portions are arranged towards the side of the crossbeam which is opposite to the first and second connecting portions, and the cement pads are inserted into the crossbeam from the side of the insertion portions between the crossbeam and the wooden base plate. In use, the steel bar truss is inserted into the first and second connecting portions of the crossbeam to be connected with the crossbeam, then the insertion holes of the wooden base plate are inserted into the insertion portions to be locked with the crossbeam, and then the cement pads are inserted into the crossbeam from the side between the crossbeam and the wooden base plate to support the wooden base plate and the crossbeam, so that the concrete can be conveniently poured, the process does not need to use bolts for fixing, the insertion is directly achieved, the construction is convenient, the construction efficiency is greatly improved, and the cost of bolts is saved.

[0008] Preferably, in order to clamp the wooden base plate, the insertion portion comprises two symmetrically arranged connecting bases which are fixedly installed on the first and second connecting portions, the connecting bases are adapted to the insertion holes in diameter, an insertion head is fixedly installed on each end of the two connecting bases which is away from the first and second connecting portions, the insertion head is provided with a contraction groove, and a third anti-drop block which is larger in diameter than the connecting base is fixedly installed on the end of the insertion head which is away from the connecting base. Thus, the wooden base plate is clamped without bolts, and the construction is convenient.

[0009] Preferably, in order to clamp the lower chord, a first anti-drop block which is parallel to the crossbeam is fixedly installed on the end of the first connecting portion which is away from the insertion portion, the first anti-drop block is arranged towards the second connecting portion, and a first clamping hole which is adapted to the steel bar is arranged between the first anti-drop block and the crossbeam. Thus, the lower chord on one side of the steel bar truss is fixed without welding, and the construction is convenient and fast.

[0010] Preferably, in order to clamp the lower chord, a second anti-drop block which is perpendicular to the crossbeam is fixedly installed on the second connecting portion, the second anti-drop block is arranged in a U shape, a second clamping hole which is arranged in a round hole shape is arranged on the second anti-drop block, a contraction block which is arranged towards the second clamping hole is fixedly installed on the second anti-drop block, and an arc-shaped notch which is adapted to the steel bar is arranged on the inner side wall of the second clamping hole. Thus, the lower chord on the other side of the steel bar truss is fixed without welding, the clamping is fastened, and the construction is facilitated.

[0011] Preferably, in order to stabilize the cross beam, two clamping protrusions extending towards the insertion part are fixedly installed on the cross beam, the two clamping protrusions are symmetrically arranged on the cross beam and are respectively arranged close to the inner side walls of the first connecting part and the second connecting part, a limiting groove adapted to the cement pad is arranged between the two clamping protrusions and the first connecting part and the second connecting part, and the cement pad is inserted into the limiting groove. The problem of one side tilting is avoided, and the pouring quality is improved.

[0012] The connecting piece is inserted into the first connecting part and the second connecting part of the cross beam to complete the connection with the cross beam, then the insertion hole on the wooden base plate is aligned with the insertion part and is inserted to complete the locking of the wooden base plate and the cross beam, then the cement pad is inserted from the side between the bottom of the cross beam and the wooden base plate to support the wooden base plate and the cross beam, which facilitates the pouring of concrete and does not need to use bolts for fixing, directly inserts, facilitates construction, greatly improves the construction efficiency, and saves the cost of bolts.

[0013] After the connecting piece inserts the wooden base plate into the insertion part, two cement pads are placed on the top of the wooden base plate and are pushed into the limiting groove from the side, and the clamping protrusions cooperate with the first connecting part and the second connecting part to clamp the cement pad, so that the wooden base plate and the cross beam are expanded to form a space convenient for pouring concrete, and the cement pads symmetrically arranged on the two sides can ensure that the space at the bottom of the cross beam is uniformly distributed, the problem of one side tilting is avoided, and the pouring quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is an appearance structure diagram of a cement pad connecting piece of a screw-free quick-release truss floor slab.

[0015] Figure 2 It is an exploded structure diagram of a cement pad connecting piece of a screw-free quick-release truss floor slab.

[0016] Figure 3 It is a cross-sectional structure diagram of a cement pad connecting piece of a screw-free quick-release truss floor slab.

[0017] Figure 4 It is Figure 2 It is an enlarged diagram of position A.

[0018] In the figure:

[0019] 1, wooden base plate; 11, insertion hole; 2, hanging piece; 21, cross beam; 22, first connecting part; 221, first anti-falling block; 222, first clamping hole; 23, second connecting part; 231, second anti-falling block; 232, second clamping hole; 233, contraction block; 24, insertion part; 241, connecting base; 242, insertion head; 243, contraction groove; 244, third anti-falling block; 25, cement pad; 26, clamping protrusion; 27, limiting groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort fall within the protection scope of the present application.

[0021] Embodiment 1

[0022] The present embodiment provides a cement pad connecting piece of a screw-free quick-release truss floor slab, as shown in the figure, the connecting piece comprises a hanging piece 2 for connecting a wooden base plate 1, and a socket 11 pre-set on the wooden base plate 1 and matched with the hanging piece 2: Figures 1-4

[0023] The hanging piece 2 comprises a crossbeam 21, two ends of the crossbeam 21 are respectively fixedly installed with a first connecting part 22 and a second connecting part 23 for clamping a steel bar, the first connecting part 22 and the second connecting part 23 are arranged towards the same side of the crossbeam 21, two symmetrically arranged socket insertion parts 24 matched with the socket 11 of the wooden base plate 1 are fixedly installed at the two ends of the crossbeam 21, the socket insertion parts 24 are inserted into the socket 11, the two socket insertion parts 24 are arranged corresponding to the first connecting part 22 and the second connecting part 23 and extend towards the side of the crossbeam 21 opposite to the first connecting part 22 and the second connecting part 23, and a cement pad 25 is inserted at the two ends of the crossbeam 21 towards the side of the socket insertion parts 24.

[0024] In use, the steel bar truss is inserted into the first connecting part 22 and the second connecting part 23 on the crossbeam 21 to complete the connection with the crossbeam 21, then the socket 11 on the wooden base plate 1 is inserted into the socket insertion parts 24 to complete the locking of the wooden base plate 1 with the crossbeam 21, and then the cement pad 25 is inserted from the side between the bottom of the crossbeam 21 and the wooden base plate 1 to support the wooden base plate 1 and the crossbeam 21, facilitating the pouring of concrete, without the use of bolts for fixing, directly inserted, convenient for construction, greatly improving the construction efficiency and saving the cost of bolts.

[0025] Specifically, the socket insertion part 24 comprises two symmetrically arranged connecting bases 241 fixedly installed on the first connecting part 22 and the second connecting part 23, the diameter of the connecting base 241 is matched with the socket 11, an insertion head 242 is fixedly installed at the end of each connecting base 241 away from the first connecting part 22 and the second connecting part 23, a contraction groove 243 is formed on the insertion head 242, and a third anti-dropping block 244 with a diameter larger than that of the connecting base 241 is fixedly installed at the end of the insertion head 242 away from the connecting base 241.

[0026] ​In use, the jack 11 on the wooden base plate 1 is aligned with the plug 242 and inserted, the inner wall of the jack 11 will extrude the third anti-loose block 244, the third anti-loose block 244 is extruded and shrunk through the shrinkage groove 243, so that the jack 11 continues to travel until it is in contact with the outside of the plug 242, then the third anti-loose block 244 rebounds through the shrinkage groove 243, the third anti-loose block 244 with a diameter larger than the jack 11 expands and clamps on the bottom of the wooden base plate 1, thereby clamping the wooden base plate 1 without the need for bolts, convenient construction.

[0027] More specifically, the first connecting portion 22 is fixedly installed with a first anti-loose block 221 parallel to the cross beam 21 at one end away from the plug-in portion 24, the first anti-loose block 221 extends towards the second connecting portion 23, and a first clamping hole 222 adapted to the steel bar is formed between the first anti-loose block 221 and the cross beam 21.

[0028] In use, the lower chord on one side of the steel truss is placed on the cross beam 21, and then pushed towards the first anti-loose block 221 to push the lower chord into the first clamping hole 222, thereby fixing the lower chord on one side of the steel truss without the need for welding, which is convenient and fast.

[0029] Further, the second connecting portion 23 is fixedly installed with a second anti-loose block 231 perpendicular to the cross beam 21, the second anti-loose block 231 is U-shaped, a second clamping hole 232 in the form of a round hole is formed in the second anti-loose block 231, and a contraction block 233 extending towards the second clamping hole 232 is fixedly installed on the second anti-loose block 231, and an arc-shaped notch adapted to the steel bar is formed in the inner side wall of the second clamping hole 232 and the contraction block 233.

[0030] In use, the lower chord on one side of the steel truss is installed into the first clamping hole 222, and the lower chord on the other side of the steel truss is pushed downwards along the direction perpendicular to the cross beam 21, and then pushed into the second clamping hole 232, and when the lower chord enters the second clamping hole 232, it will extrude the contraction block 233, and after the lower chord enters the second clamping hole 232, the contraction block 233 rebounds and cooperates with the other side of the second anti-loose block 231 to clamp the lower chord in the second clamping hole 232, thereby fixing the lower chord on the other side of the steel truss without the need for welding, clamping and fastening, and facilitating construction.

[0031] Still further, the cross beam 21 is fixedly installed with two clamping protrusions 26 extending towards one side of the plug-in portion 24, the two clamping protrusions 26 are symmetrically arranged on the cross beam 21 and respectively arranged close to the inner side walls of the first connecting portion 22 and the second connecting portion 23, a limiting groove 27 adapted to the cement pad 25 is formed between the two clamping protrusions 26 and the first connecting portion 22 and the second connecting portion 23, and the cement pad 25 is inserted into the limiting groove 27.

[0032] In use, after the wooden base plate 1 is inserted on the insertion part 24, two cement pads 25 are placed on the top of the wooden base plate 1 and pushed into the limiting grooves 27 from the side, and the clamping protrusions 26 cooperate with the first connecting part 22 and the second connecting part 23 to clamp the cement pads 25, so that the wooden base plate 1 and the cross beam 21 are expanded to form a space convenient for concrete pouring, and the symmetrical and stable cement pads 25 on both sides can ensure that the space at the bottom of the cross beam 21 is uniformly distributed, the problem of one side tilting is avoided, and the pouring quality is improved.

[0033] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacements or changes according to the technical scheme and concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A cement pad connector of a screw-free quick-release truss floor slab, comprising a hanging piece (2) for connecting a wooden base plate (1), and a socket (11) pre-set on the wooden base plate (1) and matched with the hanging piece (2), characterized in that: the hanging piece (2) comprises a cross beam (21), two ends of the cross beam (21) are respectively fixedly provided with a first connecting part (22) and a second connecting part (23) for clamping a steel bar, the first connecting part (22) and the second connecting part (23) are arranged towards the same side of the cross beam (21), two symmetrically arranged plug-in parts (24) matched with the socket (11) of the wooden base plate (1) are fixedly arranged at the two ends of the cross beam (21), the plug-in parts (24) are plugged into the socket (11), the two plug-in parts (24) are arranged corresponding to the first connecting part (22) and the second connecting part (23) and extend towards the side of the cross beam (21) opposite to the first connecting part (22) and the second connecting part (23), and the two ends of the cross beam (21) are plugged with cement pads (25) towards the side of the plug-in parts (24). The plug-in part (24) comprises two symmetrically arranged connecting bases (241) fixedly arranged on the first connecting part (22) and the second connecting part (23), the diameter of the connecting base (241) is matched with the socket (11), and a plug-in head (242) is fixedly arranged at the end of each connecting base (241) away from the first connecting part (22) and the second connecting part (23), the plug-in head (242) is provided with a contraction groove (243), and a third anti-drop block (244) with a larger diameter than the connecting base (241) is fixedly arranged at the end of the plug-in head (242) away from the connecting base (241).

2. A screwless quick release truss floor cement pad connector according to claim 1, wherein: A first anti-drop block (221) parallel to the cross beam (21) is fixedly arranged at the end of the first connecting part (22) away from the plug-in part (24), the first anti-drop block (221) extends towards the second connecting part (23), and a first clamping hole (222) matched with the steel bar is arranged between the first anti-drop block (221) and the cross beam (21).

3. A screwless quick release truss floor block connector according to claim 1, wherein: The second connecting part (23) is fixedly provided with a second anti-drop block (231) perpendicular to the cross beam (21), the second anti-drop block (231) is arranged in a U shape, the second anti-drop block (231) is provided with a second clamping hole (232) arranged in a circular hole shape, a contraction block (233) extending towards the second clamping hole (232) is fixedly arranged on the second anti-drop block (231), and an arc-shaped notch matched with the steel bar is arranged on the inner side wall of the second clamping hole (232).

4. A screwless quick release truss floor block connector according to claim 1, wherein: ​ 5. A screwless quick release truss floor block connector according to claim 1, wherein: The crossbeam (21) is fixedly provided with two clamping protrusions (26) extending towards the side of the insertion part (24), the two clamping protrusions (26) are symmetrically arranged on the crossbeam (21) and are respectively arranged close to the inner side walls of the first connecting part (22) and the second connecting part (23), and the two clamping protrusions (26) and the first connecting part (22) and the second connecting part (23) are provided with limiting grooves (27) matched with the cement pads (25), and the cement pads (25) are inserted into the limiting grooves (27).

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