Connecting piece of assembled floor slab and method of use thereof

Abstract

The present invention relates to a connector and a method for using an assembled floor slab, and is applicable to the technical field of floor slab assembly. A steel channel is placed between two floor slabs as a connecting and fixing frame, the steel bars of the floor slab are inserted into the steel channel, and the steel bars are tightly fixed to the steel channel by a clamping device, which is designed to be easy to disassemble and can be quickly disassembled. The present invention uses a plurality of connecting plates to fix the two floor slabs together, and a square pit matching the square tooth structure on the outer edge of the remaining connecting plate is provided on the floor slab, so that the surface of the floor slab after connection can be smooth, which is convenient for further construction on the surface of the floor slab; the connecting plate and the floor slab are hinged by a docking device, and the docking device is designed to be easily disassembled to improve the installation and disassembly efficiency of the floor slab. The pull-up fixing device of the present invention can clamp and fix the floor slabs at the upper and lower ends, thereby playing a fixing role, and the cooperation between the pull-up fixing device and the clamping device can flexibly control the clamping force.

Description

Technical Field

[0001] The invention relates to a connecting piece and a use method, and in particular to a connecting piece of an assembled floor slab and a use method suitable for use in the field of fast assembled floor slabs. Background Art

[0002] With the development of the construction industry, the continuous improvement of construction progress and the continuous optimization of construction plans, the prefabricated building structure has increasingly highlighted its superiority. However, for the overall modular assembly of prefabricated buildings, there are certain problems at this stage, which leads to the floor unit structure and assembly structure not meeting customer needs. For example, the specific floor units are not firmly installed, and there are certain defects in their strength requirements. For their fixed structures, there is a problem of slow installation and construction progress. For this reason, a connector for prefabricated floors is proposed. Summary of the invention

[0003] In view of the deficiencies of the above-mentioned technology, a connector and a method for using an assembled floor slab are provided, which have a simple structure, a tight connection, can be quickly assembled and disassembled, improve the efficiency of floor slab installation and disassembly, and have a double fixing effect.

[0004] In order to achieve the above purpose, the technical solution adopted by the present invention is: a connector for assembled floor slabs, including a connecting plate, a channel steel, a pull-up fixing device, a clamping device, a steel bar and a docking device; wherein the long sides of the connecting plate are respectively provided with continuous square tooth structures, and a plurality of countersunk holes are provided in the middle of the connecting plate, the channel steel is arranged between the connecting parts of the two floor slabs to be connected, and the upper and lower ends of the connecting parts of the two floor slabs are symmetrically provided with square pits matching the square tooth structures of the connecting plate, and the upper and lower sides of the channel steel are respectively provided with two connecting plates matching and connecting the upper and lower sides of the two floor slabs, and the inner side of the square pit is provided with a through-floor slab. Two through holes, a docking device is placed in each through hole, and the docking device is hingedly installed with the square tooth structure of the connecting plate; a number of extended steel bars are provided at the connection of the floor slabs on both sides, and the steel bars are inserted from both sides of the profiled channel steel, and the outer sides of the steel bars are provided with an upper pull-up fixing device and a clamping device fixed to the profiled channel steel, wherein the bottom of the upper pull-up fixing device is fixed to the profiled channel steel, and the top is threadedly connected to the upper connecting plate through a countersunk hole, and the bottom of the clamping device passes through the profiled channel steel and is threadedly connected to the lower connecting plate through a countersunk hole, and the upper pull-up fixing device and the clamping device are alternately arranged on the profiled channel steel and the clamping device is used to fix the steel bar.

[0005] Preferably, the connecting plate is a double-sided tooth structure with continuous square tooth structures on both long sides, or is a single-sided square tooth structure with only one long side having a continuous square tooth structure and the other long side being a straight structure. The long sides of the straight structure of the two single-sided square tooth structures are closely arranged to form a whole, and a plurality of countersunk holes threadedly connected to the pull-up fixing device and the clamping device are provided on the straight side of the connecting plate.

[0006] Preferably, the channel steel includes steel bar insertion holes, interlaced holes, side plates and a bottom plate, wherein a side plate is arranged at each end of the bottom plate, and each of the side plates is symmetrically provided with a number of steel bar insertion holes, and the steel bars extending from the floor slabs on both sides are inserted into the steel bar insertion holes, and the bottom plate is provided with a number of interlaced holes, and pressure rods are arranged in the interlaced holes.

[0007] Preferably, the pulling-up fixing device includes a pulling screw, a pulling seat and a pulling fork rod. The bottom of the pulling fork rod is welded and fixed to the base plate, and the upper end of the pulling fork rod is welded and fixed to the pulling seat. A threaded hole is provided at the upper end of the pulling seat. The pulling screw is threadedly installed in the threaded hole. The pulling screw is inserted into the countersunk hole on the connecting plate and is threadedly connected to the pulling seat.

[0008] Preferably, the clamping device includes a pressing frame, a pressing rod, a sleeve, a rotating rod, a clamping seat and a clamping screw. The pressing frame is a square body with an arc hole at the bottom, and the arc hole is used to press the steel bar. The two ends of the pressing frame are fixed to the through holes on the channel steel by inserting the pressing rod. The lower end of the pressing rod is located at the bottom of the base plate and is fixed with a sleeve. A rotating rod is inserted between the sleeves on both sides. The middle part of the rotating rod is sleeved on one end of the clamping seat. The other end of the clamping seat is provided with a threaded hole. The clamping screw passes through the countersunk hole on the connecting plate and is threadedly connected to the clamping seat.

[0009] Preferably, a resistance pattern is provided on the inner wall of the arc hole below the pressing frame, and the resistance pattern is in contact with the surface of the steel bar.

[0010] Preferably, the docking device includes a docking seat, a pin, a sleeve and a docking rod. The head parts of the docking seat and the docking rod are threadedly matched, and the tail parts are both provided with a sleeve. The sleeve is provided with a pin. The docking seat is inserted from one side of a through hole in the floor slab, and the docking rod is inserted from the other side of the through hole in the floor slab. The docking seat and the docking rod are docked and threadedly connected and fastened, and the docking seat and the docking rod are hinged to the connecting plate through the pin on the sleeve.

[0011] Preferably, the depth of the square pit is the same as the thickness of the connecting plate.

[0012] A method for using a connector for an assembled floor slab, the steps are as follows:

[0013] First, trim the connecting ends of the two floor slabs to be connected, set a number of square pits on the ends that match the square teeth size of the connecting plate to ensure that the square teeth of the connecting plate are set flat on the square pits, and drill two through holes at both ends of the inner side of each square pit according to the position of the square teeth of the connecting plate;

[0014] Then, the channel steel is arranged in the middle of the connecting ends of the two floor slabs, and the steel bars extending from the connecting ends of the two floor slabs are passed through the steel bar insertion holes of the channel steel;

[0015] On the steel bar insertion hole passing through the channel steel, an upper pull fixture and a clamping device are alternately arranged, and the pulling seat is fixedly installed on the bottom plate through the pulling fork rod of the upper pull fixture, and the clamping rod of the clamping device is passed through the pressing frame and fixed in the insertion hole, so that the inner side of the pressing frame is used to clamp the steel bar to prevent it from moving;

[0016] Install the connecting plate in accordance with the square tooth structure and match it with the square pits of the two floor slabs, then use the pull-up screw to pass through the countersunk hole on the connecting plate and fix it with the pull seat thread of the pull-up fixing device; use the clamping screw to pass through the countersunk hole on the connecting plate and the middle part of the clamping device to cover the clamping seat thread and fix it;

[0017] A hole matching the through hole inside the square pit is set at the end of each square tooth, and a docking seat and a docking rod are installed at the upper and lower ends of the through hole through the end hole of the square tooth, and the docking seat and the docking rod head are threadedly tightened, and then the pin shaft on the sleeve is used to complete the hinge connection with the connecting plate.

[0018] Beneficial effects:

[0019] 1. The present invention places a channel steel between two floor slabs as a fixing frame, inserts the steel bars of the floor slab into the channel steel, and uses a clamping device to tightly fix the steel bars to the channel steel. The clamping device is designed to be easy to disassemble and is connected by bolts so that it can be quickly disassembled and assembled.

[0020] 2. The present invention uses four connecting plates to fix and connect two floor slabs. A square pit is provided on the floor slab, and the connecting plates are placed in the square pit, so that the surface of the floor slab can be smooth after connection, which is convenient for further construction on the floor slab surface; the connecting plate and the floor slab are hinged by a docking device, and the docking device adopts a convenient disassembly design, which improves the installation and disassembly efficiency of the floor slab.

[0021] 3. The design of the pull-up fixing device of the present invention can enable the floor slabs at the upper and lower ends to be clamped and fixed, thereby playing a fixing role. The cooperation of the pull-up fixing device and the clamping device can flexibly control the clamping force of the connecting plate, playing a double fixing role. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of the connector of the assembled floor slab of the present invention connecting two floor slabs;

[0023] Figure 2 It is a schematic diagram of the internal structure of the connector of the assembled floor slab of the present invention;

[0024] Figure 3 It is a schematic diagram of the channel steel structure of the connector of the assembled floor slab of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the upward pull-up fixing device of the connector of the assembled floor slab of the present invention;

[0026] Figure 5 It is a structural schematic diagram of a clamping device of a connector of an assembled floor slab of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the docking device of the connector of the prefabricated floor slab of the present invention.

[0028] In the figure: 1-connecting plate; 11-square pit; 2-floor slab; 3-channel steel; 31-rebar insertion hole; 32-insertion hole; 33-side plate; 34-bottom plate; 4-pull-up fixing device; 41-pull-up screw; 42-pulling seat; 43-pulling fork rod; 5-clamping device; 51-pressing frame; 52-pressing rod; 53-insertion sleeve; 54-rotating rod; 55-clamping seat; 56-clamping screw; 57-resistance pattern; 6-rebar; 7-docking device; 71-docking seat; 72-pin shaft; 73-sleeve seat; 74-docking rod. DETAILED DESCRIPTION

[0029] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0030] like Figure 1 As shown, the connector of the prefabricated floor slab of the present invention comprises a connecting plate 1, a channel steel 3, a pull-up fixing device 4, a clamping device 5, a steel bar 6 and a docking device 7; wherein the long sides of the connecting plate 1 are respectively provided with continuous square tooth structures, and a plurality of countersunk holes are provided in the middle of the connecting plate 1. The connecting plate 1 is a double-sided tooth structure with continuous square tooth structures on both long sides, or two pieces of single-sided square tooth structures with only one long side provided with a continuous square tooth structure, and the other long side is a straight-line structure. The long sides of the straight-line structures of the two single-sided square tooth structures are closely arranged to form a whole, and a plurality of countersunk holes threadedly connected to the pull-up fixing device 4 and the clamping device 5 are provided on one side of the straight line of the connecting plate 1; the channel steel 3 is arranged between the connection of the two floor slabs 2 to be connected, and the upper and lower sides of the ends of the connection of the two floor slabs 2 are symmetrically provided with square pits 11 matching the square tooth structure of the connecting plate 1, and the depth of the square pit 11 is the same as the thickness of the connecting plate 1, and the upper and lower sides of the channel steel 3 are respectively provided with two connecting plates 1 matching and connected with the upper and lower sides of the two floor slabs 2.

[0031] like Figure 2 and Figure 3As shown, the channel steel 3 includes a steel bar insertion hole 31, an insertion hole 32, a side plate 33 and a bottom plate 34, wherein a side plate 33 is provided at each end of the bottom plate 34, and each of the side plates 33 is symmetrically provided with a plurality of steel bar insertion holes 31, and the steel bars 6 extending from the floor slabs 2 on both sides are inserted from the steel bar insertion holes 31, and the bottom plate 34 is provided with a plurality of insertion holes 32, and a pressure rod 52 is provided in the insertion hole 32; two through holes penetrating the floor slab 2 are provided on the inner side of the square pit 11, and a docking device 7 is placed in each through hole, and the docking device 7 is connected to the square teeth of the connecting plate 1. The structure is hingedly installed; a number of extended steel bars 6 are provided at the connection of the floor slabs 2 on both sides, and the steel bars 6 are inserted from both sides of the channel steel 3. The outer sides of the steel bars 6 are provided with a pull-up fixing device 4 and a clamping device 5 fixed to the channel steel 3, wherein the bottom of the pull-up fixing device 4 is fixed to the channel steel 3, and the top is threadedly connected to the upper connecting plate 1 through a countersunk hole, and the bottom of the clamping device 5 passes through the channel steel 3 and is threadedly connected to the lower connecting plate 1 through a countersunk hole. The pull-up fixing device 4 and the clamping device 5 are alternately arranged on the channel steel 3 and the clamping device 5 is used to fix the steel bars 6.

[0032] like Figure 4 As shown, the pulling fixing device 4 includes a pulling screw 41, a pulling seat 42 and a pulling fork rod 43. The bottom of the pulling fork rod 43 is welded and fixed to the base plate 34. The upper end of the pulling fork rod 43 is welded and fixed with the pulling seat 42. The upper end of the pulling seat 42 is provided with a threaded hole, and the pulling screw 41 is threadedly installed in the threaded hole. The pulling screw 41 is inserted into the countersunk hole on the connecting plate 1 and is threadedly connected to the pulling seat 42.

[0033] like Figure 5 As shown, the clamping device 5 includes a clamping frame 51, a clamping rod 52, a sleeve 53, a rotating rod 54, a clamping seat 55 and a clamping screw 56. The clamping frame 51 is a square body with an arc hole at the bottom, and the arc hole is used to clamp the steel bar 6. The two ends of the clamping frame 51 are fixed to the insertion hole 32 on the channel steel 3 by inserting the clamping rod 52. The lower end of the clamping rod 52 is located at the bottom of the bottom plate 34 and is fixed with a sleeve 53. A rotating rod 54 is inserted between the sleeves 53 on both sides. The middle part of the rotating rod 54 covers one end of the clamping seat 55. The other end of the clamping seat 55 is provided with a threaded hole. The clamping screw 56 passes through the countersunk hole on the connecting plate 1 and is threadedly connected with the clamping seat 55. The inner wall of the arc hole below the clamping frame 51 is provided with a resistance pattern 57, and the resistance pattern 57 contacts the surface of the steel bar 6.

[0034] like Figure 6As shown, the docking device 7 includes a docking seat 71, a pin 72, a sleeve 73 and a docking rod 74. The head of the docking seat 71 and the docking rod 74 are threadedly matched, and the tail is provided with a sleeve 73, and the sleeve 73 is provided with a pin 72. The docking seat 71 is inserted from one side of a through hole of the floor 2, and the docking rod 74 is inserted from the other side of the through hole of the floor 2. The docking seat 71 and the docking rod 74 are docked and threadedly connected and fastened. The docking seat 71 and the docking rod 74 are hinged to the connecting plate 1 through the pin 72 on the sleeve 73.

[0035] A method for using a connector for an assembled floor slab, the steps of which are as follows:

[0036] First, trim the connecting ends of the two floor slabs 2 to be connected, and set a number of square pits 11 on the ends that match the square teeth size of the connecting plate 1 to ensure that the square teeth of the connecting plate 1 are set flat on the square pits 11. Drill two through holes at both ends of the inner side of each square pit 11 according to the position of the square teeth of the connecting plate 1;

[0037] Then, the channel steel 3 is arranged in the middle of the connecting ends of the two floor slabs 2, and the steel bars 6 extending from the connecting ends of the two floor slabs 2 are passed through the steel bar insertion holes 31 of the channel steel 3;

[0038] The pull-up fixture 4 and the clamping device 5 are alternately arranged on the steel bar insertion hole 31 passing through the channel steel 3, and the pull seat 42 is fixedly installed on the bottom plate 34 through the pull fork rod 43 of the pull-up fixture 4, and the pressure rod 52 of the clamping device 5 is passed through the pressure frame 51 and fixed in the insertion hole 32, so that the inner side of the pressure frame 51 is used to clamp the steel bar 6 to prevent it from moving;

[0039] The connecting plate 1 is matched and installed with the square pits 11 of the two floor slabs 2 according to the square tooth structure, and then the pull-up screw 41 is passed through the countersunk hole on the connecting plate 1 and is threadedly fixed to the pulling seat 42 of the pull-up fixing device 4; the clamping screw 56 is passed through the countersunk hole on the connecting plate 1 and is threadedly fixed to the clamping seat 55 in the middle of the clamping device 5;

[0040] A hole matching the inner through hole of the square pit 11 is set at the end of each square tooth, and a docking seat 71 and a docking rod 74 are installed at the upper and lower ends of the through hole through the end hole of the square tooth, and the heads of the docking seat 71 and the docking rod 74 are threadedly fastened, and then the pin shaft 72 on the sleeve 73 is used to complete the hinge connection with the connecting plate 1.

[0041] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A connector for an assembled floor, characterized in that: The invention comprises a connecting plate (1), a channel steel (3), a pull-up fixing device (4), a pressing device (5), a steel bar (6) and a docking device (7); wherein the long sides of both sides of the connecting plate (1) are respectively provided with continuous square tooth structures, a plurality of countersunk holes are provided in the middle of the connecting plate (1), the channel steel (3) is arranged between the connecting parts of two floor slabs (2) to be connected, square pits (11) matching the square tooth structures of the connecting plate (1) are symmetrically arranged on the upper and lower sides of the ends of the connecting parts of the two floor slabs (2), two connecting plates (1) are respectively provided on the upper and lower sides of the channel steel (3) to match and connect with the upper and lower sides of the two floor slabs (2), two through holes penetrating the floor slabs (2) are provided on the inner side of the square pit (11), and a docking device (7) is placed in each through hole. 7), the docking device (7) is hingedly installed with the square tooth structure of the connecting plate (1); a plurality of extending steel bars (6) are provided at the connection of the floor slabs (2) on both sides, and the steel bars (6) are inserted from both sides of the profiled channel steel (3); the outer sides of the steel bars (6) are provided with an upper pull-up fixing device (4) and a clamping device (5) fixed to the profiled channel steel (3), wherein the bottom of the upper pull-up fixing device (4) is fixed to the profiled channel steel (3), and the top is threadedly connected to the upper connecting plate (1) through a countersunk hole, and the bottom of the clamping device (5) passes through the profiled channel steel (3) and is threadedly connected to the lower connecting plate (1) through a countersunk hole, and the upper pull-up fixing device (4) and the clamping device (5) are alternately arranged on the profiled channel steel (3) and the clamping device (5) is used to fix the steel bars (6); The profiled channel steel (3) comprises a steel bar insertion hole (31), an insertion hole (32), a side plate (33) and a bottom plate (34), wherein a side plate (33) is provided at each end of the bottom plate (34), and each of the side plates (33) is symmetrically provided with a plurality of steel bar insertion holes (31), and steel bars (6) extending from the floor slabs (2) on both sides are inserted through the steel bar insertion holes (31), and the bottom plate (34) is provided with a plurality of insertion holes (32), and a compression rod (52) is provided in each of the insertion holes (32); The pull-up fixing device (4) comprises a pull-up screw (41), a pull seat (42) and a pull fork rod (43). The bottom of the pull fork rod (43) is welded and fixed to the bottom plate (34). The upper end of the pull fork rod (43) is welded and fixed to the pull seat (42). The upper end of the pull seat (42) is provided with a threaded hole. The threaded hole is threadedly installed with the pull-up screw (41). The pull-up screw (41) is inserted into the countersunk hole on the connecting plate (1) and is threadedly connected to the pull seat (42). The clamping device (5) comprises a clamping frame (51), a clamping rod (52), a sleeve (53), a rotating rod (54), a clamping seat (55) and a clamping screw (56). The clamping frame (51) is a square body with an arc hole at the bottom, and the arc hole is used to clamp the steel bar (6). The two ends of the clamping frame (51) are fixed to the insertion hole (32) on the channel steel (3) by inserting the clamping rod (52). The lower end of the clamping rod (52) is located at the bottom of the bottom plate (34) and is fixed with a sleeve (53). A rotating rod (54) is inserted between the sleeves (53) on both sides. The middle part of the rotating rod (54) covers one end of the clamping seat (55). The other end of the clamping seat (55) is provided with a threaded hole. The clamping screw (56) passes through the countersunk hole on the connecting plate (1) and is threadedly connected to the clamping seat (55). The docking device (7) comprises a docking seat (71), a pin (72), a sleeve (73) and a docking rod (74); the head of the docking seat (71) and the docking rod (74) are threadedly matched, and the tail of each is provided with a sleeve (73); the sleeve (73) is provided with a pin (72); the docking seat (71) is inserted from one side of a through hole of the floor slab (2), and the docking rod (74) is inserted from the other side of the through hole of the floor slab (2); the docking seat (71) and the docking rod (74) are docked and threadedly connected and fastened; the docking seat (71) and the docking rod (74) are hinged to the connecting plate (1) via the pin (72) on the sleeve (73).

2. The connector for a prefabricated floor according to claim 1, characterized in that: The connecting plate (1) is a double-sided tooth structure with continuous square tooth structures on both long sides, or two single-sided square tooth structures with only one long side having a continuous square tooth structure and the other long side having a straight structure. The long sides of the straight structures of the two single-sided square tooth structures are arranged closely together to form a whole. A plurality of countersunk holes threadedly connected to the upper pull-up fixing device (4) and the clamping device (5) are provided on one straight side of the connecting plate (1).

3. The connector for a prefabricated floor according to claim 1, characterized in that: The inner wall of the arc hole below the pressing frame (51) is provided with a resistance pattern (57), and the resistance pattern (57) is in contact with the surface of the steel bar (6).

4. The connector for a prefabricated floor according to claim 1, characterized in that: The depth of the square pit (11) is the same as the thickness of the connecting plate (1).

5. A method for using the connector of the assembled floor according to any one of claims 1 to 4, characterized in that: Here are the steps: First, the connecting ends of the two floor slabs (2) to be connected are trimmed, and a plurality of square pits (11) matching the size of the square teeth of the connecting plate (1) are arranged on the ends to ensure that the square teeth of the connecting plate (1) are arranged flat on the square pits (11), and two through holes are drilled at both ends of the inner side of each square pit (11) in accordance with the position of the square teeth of the connecting plate (1); Then, the profiled channel steel (3) is arranged in the middle of the connection ends of the two floor slabs (2), and the steel bars (6) extending from the connection ends of the two floor slabs (2) are passed through the steel bar insertion holes (31) of the profiled channel steel (3); An upper pull fixture (4) and a clamping device (5) are alternately arranged on the steel bar insertion hole (31) passing through the profiled channel steel (3), and the pulling seat (42) is fixedly mounted on the bottom plate (34) by a pulling fork rod (43) of the upper pull fixture (4), and a pressing rod (52) of the clamping device (5) is passed through a pressing frame (51) and fixed in the insertion hole (32), so that the inner side of the pressing frame (51) is used to clamp the steel bar (6) to prevent it from moving; The connecting plate (1) is matched and installed with the square pits (11) of the two floor slabs (2) according to the square tooth structure, and then the upper pull screw (41) is passed through the countersunk hole on the connecting plate (1) and is threadedly fixed to the pulling seat (42) of the upper pull fixing device (4); the clamping screw (56) is passed through the countersunk hole on the connecting plate (1) and is threadedly fixed to the middle part of the clamping device (5) by covering the clamping seat (55); A hole matching the inner through hole of the square pit (11) is provided at the end of each square tooth, and a docking seat (71) and a docking rod (74) are installed at the upper and lower ends of the through hole through the end hole of the square tooth, and the heads of the docking seat (71) and the docking rod (74) are threadedly fastened, and then hingedly connected to the connecting plate (1) through a pin shaft (72) on the sleeve seat (73).

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